Akashic

county

Boulder County, CO

Office (updates table and map)

President margin by year

Place winner margin

1880–2024 · D minus R

Full record · 1880 → 2024

2024

Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab

People and households

Who lives here

Exact values for this place, its state, and the United States.

Race · ethnicity · ancestry

Communities and origins

German18.1%17.9%12.5%

English15.1%12.6%9.5%

Irish12.6%11.2%9.4%

Italian5.3%4.9%4.8%

Polish3.1%2.1%2.2%

American3.0%3.5%5.3%

French2.9%2.0%1.6%

Scottish2.9%2.5%1.3%

Mexican9.9%15.8%11.3%

Spanish0.8%1.2%—

Spaniard0.7%1.0%—

Puerto Rican0.5%0.7%1.8%

Salvadoran0.3%0.3%0.7%

Cuban0.2%0.3%0.7%

Guatemalan0.2%—0.5%

Honduran0.2%—0.3%

Chinese1.4%0.6%1.3%

Asian Indian1.1%0.6%1.4%

Korean0.4%0.3%0.4%

Japanese0.3%—0.2%

Nepalese0.3%——

Filipino0.2%0.3%0.9%

Vietnamese0.2%0.4%0.6%

Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.

Age and life stage

Measure	Boulder County	Colorado	United States
Median age	37.7	37.9	39.1
Age 18–24	15.4%	9.2%	9.2%
Age 65 and older	16.3%	15.5%	17.2%

Household economy

Measure	Boulder County	Colorado	United States
Median household income	$103,994	$95,470	$84,427
Poverty rate	11.2%	9.5%	12.5%
Bachelor's degree or higher (25+)	64.2%	45.5%	35.6%

Languages at home

Measure	Boulder County	Colorado	United States
Speaks a non-English language at home	15.1%	16.2%	22.3%
Spanish	8.2%	11.1%	13.6%
Other Indo-European	1.7%	1.0%	2.0%
Chinese (incl. Mandarin & Cantonese)	1.1%	0.5%	1.1%
Other Asian & Pacific Island	1.0%	0.7%	1.1%

Religious landscape

Measure	Boulder County	Colorado	United States
Catholic	16.0%	15.1%	18.6%
Evangelical Protestant	12.6%	11.7%	16.5%
Unclaimed / not counted	63.7%	64.7%	51.5%

American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.

President results by year

2024 turnout 77.6% of 256,370 citizens 18+

HarrisDemocratic76.5%150,149TrumpRepublican20.8%40,758KennedyIndependent0.9%1,754

D+55.7

Lead: 109,391
Total: 196,304
vs nation: D+57.2
Turnout: 77.6%

BidenDemocratic77.2%159,089TrumpRepublican20.6%42,501JorgensenLibertarian1.2%2,539

D+56.6

Lead: 116,588
Total: 206,111
vs nation: D+52.1
Turnout: 85.8%

ClintonDemocratic70.3%132,334TrumpRepublican22.0%41,396JohnsonLibertarian4.3%8,034

D+48.3

Lead: 90,938
Total: 188,145
vs nation: D+46.2
Turnout: 83.4%

ObamaDemocratic69.7%125,091RomneyRepublican27.8%49,981OtherAll other candidates2.5%4,427

D+41.8

Lead: 75,110
Total: 179,499
vs nation: D+38.0
Turnout: —

ObamaDemocratic72.3%124,159McCainRepublican26.1%44,904OtherAll other candidates1.6%2,700

D+46.1

Lead: 79,255
Total: 171,763
vs nation: D+38.9
Turnout: —

KerryDemocratic66.3%105,564BushRepublican32.4%51,586OtherAll other candidates1.3%2,109

D+33.9

Lead: 53,978
Total: 159,259
vs nation: D+36.4
Turnout: —

GoreDemocratic50.1%69,983BushRepublican36.4%50,873NaderGreen11.8%16,498

D+13.7

Lead: 19,110
Total: 139,626
vs nation: D+13.2
Turnout: —

ClintonDemocratic52.2%63,316DoleRepublican34.5%41,922PerotReform5.6%6,840

D+17.6

Lead: 21,394
Total: 121,354
vs nation: D+9.1
Turnout: —

Key facts

2024 presidential margin: D+55.7MIT Election Lab
Population: 328,9612024 5-year
Median household income: $103,9942024 5-year
White (non-Hispanic): 74.5%2024 5-year
Black: 0.8%2024 5-year
Hispanic / Latino: 14.7%2024 5-year
Peak Democratic margin: D+69.5 in 1896MIT Election Lab
Peak Republican margin: R+36.4 in 1892MIT Election Lab
Most similar: Orange County, NC · twin score 97.0

Participation

Midterm durability

Total general-election participants divided by same-year citizen voting-age population. These are total ballots or participating voters—not presidential candidate votes.

2024 total turnout: 77.6%198,885 participants ÷ 256,370 CVAP
2020→2022 drop-off: +19.3 ptsVolatile
Drop-off versus state: -1.1 ptsPositive means a larger decline than the statewide pattern
Mechanical 2026 scenario: 58.3%–63.8%Recent-cycle and two-cycle persistence scenarios; not a forecast

Election	Participants	CVAP	Turnout	Quality
2016 · Presidential	193,784	232,475	83.4%	A/A
2018 · Midterm	179,882	239,847	75.0%	A/A
2020 · Presidential	211,481	246,488	85.8%	A/A
2022 · Midterm	168,783	253,803	66.5%	C/A
2024 · Presidential	198,885	256,370	77.6%	A/A

Sources and methods

2016: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 293/111.
2018: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 297/138.
2020: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 301/2.
2022: numerator source 159, denominator source 157; top ticket votes; canonical-complete-contest-floor-v1; allocation share 0.0%; series 154/183.
2024: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 311/228.

Precinct data

Results by precinct

424 precincts · 196,304 votes

Election

Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.

Boulder County precinct-level presidential election results for 2024

Precinct -21719074002171907400	1,511	582	78	2,171	69.6%	26.8%	D+42.8
Precinct -21812075042181207504	1,826	230	59	2,115	86.3%	10.9%	D+75.5
Precinct -21711076512171107651	1,176	581	41	1,798	65.4%	32.3%	D+33.1
Precinct -21812075072181207507	1,336	367	37	1,740	76.8%	21.1%	D+55.7
Precinct -21712073022171207302	1,315	314	53	1,682	78.2%	18.7%	D+59.5
Precinct -21711076102171107610	1,210	419	41	1,670	72.5%	25.1%	D+47.4
Precinct -21711076152171107615	1,304	303	36	1,643	79.4%	18.4%	D+60.9
Precinct -21719074042171907404	1,093	489	50	1,632	67.0%	30.0%	D+37.0
Precinct -21712073002171207300	1,130	424	47	1,601	70.6%	26.5%	D+44.1
Precinct -21549079122154907912	1,242	307	38	1,587	78.3%	19.3%	D+58.9
Precinct -21711076002171107600	1,150	404	30	1,584	72.6%	25.5%	D+47.1
Precinct -21711076072171107607	1,192	344	42	1,578	75.5%	21.8%	D+53.7
Precinct -21810078402181007840	1,372	151	33	1,556	88.2%	9.7%	D+78.5
Precinct -21849078152184907815	1,334	187	34	1,555	85.8%	12.0%	D+73.8
Precinct -21810078032181007803	1,328	168	42	1,538	86.3%	10.9%	D+75.4
Precinct -21719076192171907619	949	542	38	1,529	62.1%	35.4%	D+26.6
Precinct -21810078172181007817	1,340	140	46	1,526	87.8%	9.2%	D+78.6
Precinct -21719076202171907620	1,007	467	47	1,521	66.2%	30.7%	D+35.5
Precinct -21849078452184907845	1,325	139	43	1,507	87.9%	9.2%	D+78.7
Precinct -21712073012171207301	1,153	313	37	1,503	76.7%	20.8%	D+55.9
Precinct -21719074062171907406	961	495	46	1,502	64.0%	33.0%	D+31.0
Precinct -21711076092171107609	1,121	326	38	1,485	75.5%	22.0%	D+53.5
Precinct -21810078252181007825	1,326	113	31	1,470	90.2%	7.7%	D+82.5
Precinct -21849078272184907827	1,283	133	41	1,457	88.1%	9.1%	D+78.9
Precinct -21711076062171107606	1,047	361	24	1,432	73.1%	25.2%	D+47.9
Precinct -21812071052181207105	1,099	282	50	1,431	76.8%	19.7%	D+57.1
Precinct -21719074012171907401	1,027	355	47	1,429	71.9%	24.8%	D+47.0
Precinct -21810078202181007820	1,150	238	39	1,427	80.6%	16.7%	D+63.9
Precinct -21812075092181207509	1,130	255	37	1,422	79.5%	17.9%	D+61.5
Precinct -21812072072181207207	1,172	216	29	1,417	82.7%	15.2%	D+67.5
Precinct -21812075082181207508	1,073	298	43	1,414	75.9%	21.1%	D+54.8
Precinct -21849078562184907856	1,222	144	32	1,398	87.4%	10.3%	D+77.1
Precinct -21810078322181007832	1,101	252	41	1,394	79.0%	18.1%	D+60.9
Precinct -21812072042181207204	1,144	223	26	1,393	82.1%	16.0%	D+66.1
Precinct -21711076492171107649	870	471	49	1,390	62.6%	33.9%	D+28.7
Precinct -21711076242171107624	1,031	315	40	1,386	74.4%	22.7%	D+51.7
Precinct -21711076232171107623	908	432	45	1,385	65.6%	31.2%	D+34.4
Precinct -21810078192181007819	1,154	173	52	1,379	83.7%	12.5%	D+71.1
Precinct -21712073142171207314	1,120	207	43	1,370	81.8%	15.1%	D+66.6
Precinct -21719074022171907402	987	329	42	1,358	72.7%	24.2%	D+48.5
Precinct -21711076082171107608	984	344	27	1,355	72.6%	25.4%	D+47.2
Precinct -21810078302181007830	1,173	143	31	1,347	87.1%	10.6%	D+76.5
Precinct -21712073102171207310	1,051	260	34	1,345	78.1%	19.3%	D+58.8
Precinct -21810078182181007818	1,103	189	45	1,337	82.5%	14.1%	D+68.4
Precinct -21711076032171107603	988	334	14	1,336	74.0%	25.0%	D+49.0
Precinct -21812075062181207506	1,027	252	31	1,310	78.4%	19.2%	D+59.2
Precinct -21719074032171907403	946	333	27	1,306	72.4%	25.5%	D+46.9
Precinct -21812071002181207100	900	354	47	1,301	69.2%	27.2%	D+42.0
Precinct -21711076162171107616	977	270	46	1,293	75.6%	20.9%	D+54.7
Precinct -21812071062181207106	996	258	26	1,280	77.8%	20.2%	D+57.7
Precinct -21810078292181007829	1,018	222	37	1,277	79.7%	17.4%	D+62.3
Precinct -21719076372171907637	789	461	23	1,273	62.0%	36.2%	D+25.8
Precinct -21812075022181207502	931	295	43	1,269	73.4%	23.2%	D+50.1
Precinct -21812072102181207210	1,067	158	28	1,253	85.2%	12.6%	D+72.5
Precinct -21810078222181007822	1,059	137	49	1,245	85.1%	11.0%	D+74.1
Precinct -21810078082181007808	1,055	159	24	1,238	85.2%	12.8%	D+72.4
Precinct -21549079152154907915	959	247	31	1,237	77.5%	20.0%	D+57.6
Precinct -21719076362171907636	800	400	30	1,230	65.0%	32.5%	D+32.5
Precinct -21812072092181207209	979	222	27	1,228	79.7%	18.1%	D+61.6
Precinct -21711076262171107626	860	313	35	1,208	71.2%	25.9%	D+45.3
Precinct -21712073132171207313	954	210	40	1,204	79.2%	17.4%	D+61.8
Precinct -21712073162171207316	876	287	26	1,189	73.7%	24.1%	D+49.5
Precinct -21812071012181207101	911	245	19	1,175	77.5%	20.9%	D+56.7
Precinct -21849078552184907855	1,056	95	21	1,172	90.1%	8.1%	D+82.0
Precinct -21711076182171107618	777	352	41	1,170	66.4%	30.1%	D+36.3
Precinct -21810078162181007816	1,016	117	29	1,162	87.4%	10.1%	D+77.4
Precinct -21512077002151207700	834	292	26	1,152	72.4%	25.3%	D+47.0
Precinct -21849078042184907804	961	157	30	1,148	83.7%	13.7%	D+70.0
Precinct -21810078092181007809	966	148	29	1,143	84.5%	12.9%	D+71.6
Precinct -21549077012154907701	751	360	25	1,136	66.1%	31.7%	D+34.4
Precinct -21810078332181007833	929	159	46	1,134	81.9%	14.0%	D+67.9
Precinct -21810078392181007839	997	104	24	1,125	88.6%	9.2%	D+79.4
Precinct -21810078062181007806	984	106	32	1,122	87.7%	9.4%	D+78.3
Precinct -21810078502181007850	971	111	37	1,119	86.8%	9.9%	D+76.9
Precinct -21711076172171107617	732	343	30	1,105	66.2%	31.0%	D+35.2
Precinct -21711076452171107645	752	318	32	1,102	68.2%	28.9%	D+39.4
Precinct -21812075002181207500	815	249	35	1,099	74.2%	22.7%	D+51.5
Precinct -21549079162154907916	803	260	30	1,093	73.5%	23.8%	D+49.7
Precinct -21719074052171907405	706	354	33	1,093	64.6%	32.4%	D+32.2
Precinct -21712073062171207306	880	181	27	1,088	80.9%	16.6%	D+64.2
Precinct -21711076422171107642	739	320	25	1,084	68.2%	29.5%	D+38.7
Precinct -21812072122181207212	883	166	29	1,078	81.9%	15.4%	D+66.5
Precinct -21812075102181207510	701	343	28	1,072	65.4%	32.0%	D+33.4
Precinct -21712073072171207307	779	260	26	1,065	73.1%	24.4%	D+48.7
Precinct -21810078432181007843	928	91	31	1,050	88.4%	8.7%	D+79.7
Precinct -21812072002181207200	838	177	34	1,049	79.9%	16.9%	D+63.0
Precinct -21712073092171207309	815	206	23	1,044	78.1%	19.7%	D+58.3
Precinct -21549079042154907904	834	160	43	1,037	80.4%	15.4%	D+65.0
Precinct -21711076342171107634	671	330	35	1,036	64.8%	31.9%	D+32.9
Precinct -21719076352171907635	669	340	27	1,036	64.6%	32.8%	D+31.8
Precinct -21810078422181007842	845	159	32	1,036	81.6%	15.3%	D+66.2
Precinct -21810078382181007838	848	149	30	1,027	82.6%	14.5%	D+68.1
Precinct -21711076052171107605	725	267	30	1,022	70.9%	26.1%	D+44.8
Precinct -21849078052184907805	883	108	30	1,021	86.5%	10.6%	D+75.9
Precinct -21711076502171107650	580	417	20	1,017	57.0%	41.0%	D+16.0
Precinct -21812071032181207103	726	264	27	1,017	71.4%	26.0%	D+45.4
Precinct -21810078022181007802	826	160	27	1,013	81.5%	15.8%	D+65.7
Precinct -21712073122171207312	781	209	16	1,006	77.6%	20.8%	D+56.9
Precinct -21711076292171107629	662	317	26	1,005	65.9%	31.5%	D+34.3
Precinct -21711076122171107612	689	279	29	997	69.1%	28.0%	D+41.1
Precinct -21711076252171107625	670	286	30	986	68.0%	29.0%	D+38.9
Precinct -21810078312181007831	709	251	20	980	72.3%	25.6%	D+46.7
Precinct -21812072062181207206	848	105	26	979	86.6%	10.7%	D+75.9
Precinct -21711076112171107611	723	225	27	975	74.2%	23.1%	D+51.1
Precinct -21812071042181207104	683	273	18	974	70.1%	28.0%	D+42.1
Precinct -21712073052171207305	754	176	33	963	78.3%	18.3%	D+60.0
Precinct -21810078072181007807	819	119	24	962	85.1%	12.4%	D+72.8
Precinct -21812071022181207102	705	224	26	955	73.8%	23.5%	D+50.4
Precinct -21711076042171107604	682	235	22	939	72.6%	25.0%	D+47.6
Precinct -21712073082171207308	748	167	23	938	79.7%	17.8%	D+61.9
Precinct -21712073042171207304	755	160	19	934	80.8%	17.1%	D+63.7
Precinct -21812072052181207205	778	128	28	934	83.3%	13.7%	D+69.6
Precinct -21812072012181207201	729	183	19	931	78.3%	19.7%	D+58.6
Precinct -21810078232181007823	770	110	45	925	83.2%	11.9%	D+71.4
Precinct -21812072082181207208	719	176	30	925	77.7%	19.0%	D+58.7
Precinct -21810078112181007811	798	91	30	919	86.8%	9.9%	D+76.9
Precinct -21810078342181007834	791	88	37	916	86.4%	9.6%	D+76.7
Precinct -21711076132171107613	637	254	24	915	69.6%	27.8%	D+41.9
Precinct -21810078002181007800	724	161	29	914	79.2%	17.6%	D+61.6
Precinct -21810078492181007849	795	92	27	914	87.0%	10.1%	D+76.9
Precinct -21810078132181007813	807	79	22	908	88.9%	8.7%	D+80.2
Precinct -21711076012171107601	671	207	24	902	74.4%	22.9%	D+51.4
Precinct -21810078212181007821	770	97	32	899	85.7%	10.8%	D+74.9
Precinct -21711076282171107628	585	267	20	872	67.1%	30.6%	D+36.5
Precinct -21849078442184907844	766	89	17	872	87.8%	10.2%	D+77.6
Precinct -21711076272171107627	558	290	20	868	64.3%	33.4%	D+30.9
Precinct -21549079012154907901	587	245	32	864	67.9%	28.4%	D+39.6
Precinct -21849078572184907857	749	68	25	842	89.0%	8.1%	D+80.9
Precinct -21711076382171107638	516	301	22	839	61.5%	35.9%	D+25.6
Precinct -21711076482171107648	546	267	25	838	65.2%	31.9%	D+33.3
Precinct -21810078412181007841	699	105	34	838	83.4%	12.5%	D+70.9
Precinct -21812072032181207203	661	152	23	836	79.1%	18.2%	D+60.9
Precinct -21549079112154907911	706	116	12	834	84.7%	13.9%	D+70.7
Precinct -21711076222171107622	531	267	35	833	63.7%	32.1%	D+31.7
Precinct -21812075052181207505	620	185	21	826	75.1%	22.4%	D+52.7
Precinct -21812075012181207501	670	126	18	814	82.3%	15.5%	D+66.8
Precinct -21712073032171207303	647	136	19	802	80.7%	17.0%	D+63.7
Precinct -21711076472171107647	521	246	31	798	65.3%	30.8%	D+34.5
Precinct -21549079072154907907	644	131	20	795	81.0%	16.5%	D+64.5
Precinct -21719076212171907621	476	288	25	789	60.3%	36.5%	D+23.8
Precinct -21810078242181007824	661	96	27	784	84.3%	12.2%	D+72.1
Precinct -21711076322171107632	518	247	18	783	66.2%	31.5%	D+34.6
Precinct -21849078542184907854	692	65	19	776	89.2%	8.4%	D+80.8
Precinct -21712073152171207315	561	170	25	756	74.2%	22.5%	D+51.7
Precinct -21711076442171107644	514	212	25	751	68.4%	28.2%	D+40.2
Precinct -21812072112181207211	561	163	20	744	75.4%	21.9%	D+53.5
Precinct -21849078142184907814	624	98	15	737	84.7%	13.3%	D+71.4
Precinct -21810078262181007826	637	73	25	735	86.7%	9.9%	D+76.7
Precinct -21711076432171107643	474	235	25	734	64.6%	32.0%	D+32.6
Precinct -21712073112171207311	590	124	10	724	81.5%	17.1%	D+64.4
Precinct -21711076332171107633	453	242	27	722	62.7%	33.5%	D+29.2
Precinct -21810078122181007812	618	87	15	720	85.8%	12.1%	D+73.8
Precinct -21711076402171107640	472	222	23	717	65.8%	31.0%	D+34.9
Precinct -21711076392171107639	455	243	18	716	63.5%	33.9%	D+29.6
Precinct -21849078532184907853	626	73	12	711	88.0%	10.3%	D+77.8
Precinct -21812072022181207202	586	104	13	703	83.4%	14.8%	D+68.6
Precinct -21711076022171107602	468	206	26	700	66.9%	29.4%	D+37.4
Precinct -21711076312171107631	410	260	22	692	59.2%	37.6%	D+21.7
Precinct -21810078462181007846	631	49	8	688	91.7%	7.1%	D+84.6
Precinct -21810078472181007847	566	72	34	672	84.2%	10.7%	D+73.5
Precinct -21711076412171107641	399	240	24	663	60.2%	36.2%	D+24.0
Precinct -21711076462171107646	426	218	16	660	64.5%	33.0%	D+31.5
Precinct -21810078102181007810	541	68	27	636	85.1%	10.7%	D+74.4
Precinct -21810078372181007837	546	81	7	634	86.1%	12.8%	D+73.3
Precinct -21549079032154907903	503	98	25	626	80.4%	15.7%	D+64.7
Precinct -21711076302171107630	391	202	18	611	64.0%	33.1%	D+30.9
Precinct -21849078282184907828	532	67	10	609	87.4%	11.0%	D+76.4
Precinct -21810078482181007848	493	73	24	590	83.6%	12.4%	D+71.2
Precinct -21849078522184907852	499	68	22	589	84.7%	11.5%	D+73.2
Precinct -21711076142171107614	429	147	12	588	73.0%	25.0%	D+48.0
Precinct -21549079102154907910	457	98	22	577	79.2%	17.0%	D+62.2
Precinct -21549077022154907702	348	211	14	573	60.7%	36.8%	D+23.9
Precinct -21549077042154907704	287	261	19	567	50.6%	46.0%	D+4.6
Precinct -21549077052154907705	252	302	9	563	44.8%	53.6%	R+8.9
Precinct -21549079132154907913	438	96	15	549	79.8%	17.5%	D+62.3
Precinct -21719074082171907408	324	202	20	546	59.3%	37.0%	D+22.3
Precinct -21810078362181007836	450	77	11	538	83.6%	14.3%	D+69.3
Precinct -21810078352181007835	459	61	8	528	86.9%	11.6%	D+75.4
Precinct -21549079092154907909	454	43	14	511	88.8%	8.4%	D+80.4
Precinct -21810078512181007851	439	45	15	499	88.0%	9.0%	D+79.0
Precinct -21549079062154907906	359	111	15	485	74.0%	22.9%	D+51.1
Precinct -21812075032181207503	308	129	21	458	67.2%	28.2%	D+39.1
Precinct -21549079052154907905	375	51	21	447	83.9%	11.4%	D+72.5
Precinct -21549079002154907900	366	56	11	433	84.5%	12.9%	D+71.6
Precinct -21549079142154907914	275	135	12	422	65.2%	32.0%	D+33.2
Precinct -21810078012181007801	344	57	15	416	82.7%	13.7%	D+69.0
Precinct -21719074072171907407	243	148	14	405	60.0%	36.5%	D+23.5
Precinct -21549079082154907908	240	93	15	348	69.0%	26.7%	D+42.2
Precinct -21549079022154907902	211	47	11	269	78.4%	17.5%	D+61.0
Precinct -21511077032151107703	103	56	7	166	62.0%	33.7%	D+28.3
Boulder 108_0801307001	0	0	0	0	—	—	No votes
Boulder 1008_0801307010	0	0	0	0	—	—	No votes
Boulder 10008_0801307100	0	0	0	0	—	—	No votes
Boulder 10108_0801307101	0	0	0	0	—	—	No votes
Boulder 10208_0801307102	0	0	0	0	—	—	No votes
Boulder 10308_0801307103	0	0	0	0	—	—	No votes
Boulder 10408_0801307104	0	0	0	0	—	—	No votes
Boulder 10508_0801307105	0	0	0	0	—	—	No votes
Boulder 10608_0801307106	0	0	0	0	—	—	No votes
Boulder 10708_0801307107	0	0	0	0	—	—	No votes
Boulder 10808_0801307108	0	0	0	0	—	—	No votes
Boulder 10908_0801307109	0	0	0	0	—	—	No votes
Boulder 1108_0801307011	0	0	0	0	—	—	No votes
Boulder 11008_0801307110	0	0	0	0	—	—	No votes
Boulder 11108_0801307111	0	0	0	0	—	—	No votes
Boulder 11208_0801307112	0	0	0	0	—	—	No votes
Boulder 11308_0801307113	0	0	0	0	—	—	No votes
Boulder 11408_0801307114	0	0	0	0	—	—	No votes
Boulder 11508_0801307115	0	0	0	0	—	—	No votes
Boulder 11608_0801307116	0	0	0	0	—	—	No votes
Boulder 11708_0801307117	0	0	0	0	—	—	No votes
Boulder 11808_0801307118	0	0	0	0	—	—	No votes
Boulder 11908_0801307119	0	0	0	0	—	—	No votes
Boulder 1208_0801307012	0	0	0	0	—	—	No votes
Boulder 12008_0801307120	0	0	0	0	—	—	No votes
Boulder 12108_0801307121	0	0	0	0	—	—	No votes
Boulder 12208_0801307122	0	0	0	0	—	—	No votes
Boulder 12308_0801307123	0	0	0	0	—	—	No votes
Boulder 12408_0801307124	0	0	0	0	—	—	No votes
Boulder 12508_0801307125	0	0	0	0	—	—	No votes
Boulder 12608_0801307126	0	0	0	0	—	—	No votes
Boulder 12708_0801307127	0	0	0	0	—	—	No votes
Boulder 12808_0801307128	0	0	0	0	—	—	No votes
Boulder 12908_0801307129	0	0	0	0	—	—	No votes
Boulder 1308_0801307013	0	0	0	0	—	—	No votes
Boulder 13008_0801307130	0	0	0	0	—	—	No votes
Boulder 13108_0801307131	0	0	0	0	—	—	No votes
Boulder 13208_0801307132	0	0	0	0	—	—	No votes
Boulder 13308_0801307133	0	0	0	0	—	—	No votes
Boulder 13408_0801307134	0	0	0	0	—	—	No votes
Boulder 13508_0801307135	0	0	0	0	—	—	No votes
Boulder 13608_0801307136	0	0	0	0	—	—	No votes
Boulder 13708_0801307137	0	0	0	0	—	—	No votes
Boulder 13808_0801307138	0	0	0	0	—	—	No votes
Boulder 13908_0801307139	0	0	0	0	—	—	No votes
Boulder 1408_0801307014	0	0	0	0	—	—	No votes
Boulder 14008_0801307140	0	0	0	0	—	—	No votes
Boulder 14108_0801307141	0	0	0	0	—	—	No votes
Boulder 14208_0801307142	0	0	0	0	—	—	No votes
Boulder 14308_0801307143	0	0	0	0	—	—	No votes
Boulder 14408_0801307144	0	0	0	0	—	—	No votes
Boulder 14508_0801307145	0	0	0	0	—	—	No votes
Boulder 14608_0801307146	0	0	0	0	—	—	No votes
Boulder 14708_0801307147	0	0	0	0	—	—	No votes
Boulder 14808_0801307148	0	0	0	0	—	—	No votes
Boulder 14908_0801307149	0	0	0	0	—	—	No votes
Boulder 1508_0801307015	0	0	0	0	—	—	No votes
Boulder 15008_0801307150	0	0	0	0	—	—	No votes
Boulder 15108_0801307151	0	0	0	0	—	—	No votes
Boulder 15208_0801307152	0	0	0	0	—	—	No votes
Boulder 15308_0801307153	0	0	0	0	—	—	No votes
Boulder 15408_0801307154	0	0	0	0	—	—	No votes
Boulder 15508_0801307155	0	0	0	0	—	—	No votes
Boulder 15608_0801307156	0	0	0	0	—	—	No votes
Boulder 15708_0801307157	0	0	0	0	—	—	No votes
Boulder 15808_0801307158	0	0	0	0	—	—	No votes
Boulder 15908_0801307159	0	0	0	0	—	—	No votes
Boulder 1608_0801307016	0	0	0	0	—	—	No votes
Boulder 16008_0801307160	0	0	0	0	—	—	No votes
Boulder 16108_0801307161	0	0	0	0	—	—	No votes
Boulder 16208_0801307162	0	0	0	0	—	—	No votes
Boulder 16308_0801307163	0	0	0	0	—	—	No votes
Boulder 16408_0801307164	0	0	0	0	—	—	No votes
Boulder 16508_0801307165	0	0	0	0	—	—	No votes
Boulder 16608_0801307166	0	0	0	0	—	—	No votes
Boulder 16708_0801307167	0	0	0	0	—	—	No votes
Boulder 16808_0801307168	0	0	0	0	—	—	No votes
Boulder 16908_0801307169	0	0	0	0	—	—	No votes
Boulder 1708_0801307017	0	0	0	0	—	—	No votes
Boulder 17008_0801307170	0	0	0	0	—	—	No votes
Boulder 17108_0801307171	0	0	0	0	—	—	No votes
Boulder 17208_0801307172	0	0	0	0	—	—	No votes
Boulder 17308_0801307173	0	0	0	0	—	—	No votes
Boulder 17408_0801307174	0	0	0	0	—	—	No votes
Boulder 17508_0801307175	0	0	0	0	—	—	No votes
Boulder 17608_0801307176	0	0	0	0	—	—	No votes
Boulder 17708_0801307177	0	0	0	0	—	—	No votes
Boulder 17808_0801307178	0	0	0	0	—	—	No votes
Boulder 17908_0801307179	0	0	0	0	—	—	No votes
Boulder 1808_0801307018	0	0	0	0	—	—	No votes
Boulder 18008_0801307180	0	0	0	0	—	—	No votes
Boulder 18108_0801307181	0	0	0	0	—	—	No votes
Boulder 18208_0801307182	0	0	0	0	—	—	No votes
Boulder 18308_0801307183	0	0	0	0	—	—	No votes
Boulder 18408_0801307184	0	0	0	0	—	—	No votes
Boulder 18508_0801307185	0	0	0	0	—	—	No votes
Boulder 18608_0801307186	0	0	0	0	—	—	No votes
Boulder 18708_0801307187	0	0	0	0	—	—	No votes
Boulder 18808_0801307188	0	0	0	0	—	—	No votes
Boulder 18908_0801307189	0	0	0	0	—	—	No votes
Boulder 1908_0801307019	0	0	0	0	—	—	No votes
Boulder 19008_0801307190	0	0	0	0	—	—	No votes
Boulder 19108_0801307191	0	0	0	0	—	—	No votes
Boulder 19208_0801307192	0	0	0	0	—	—	No votes
Boulder 19308_0801307193	0	0	0	0	—	—	No votes
Boulder 19408_0801307194	0	0	0	0	—	—	No votes
Boulder 19508_0801307195	0	0	0	0	—	—	No votes
Boulder 19608_0801307196	0	0	0	0	—	—	No votes
Boulder 19708_0801307197	0	0	0	0	—	—	No votes
Boulder 19808_0801307198	0	0	0	0	—	—	No votes
Boulder 19908_0801307199	0	0	0	0	—	—	No votes
Boulder 208_0801307002	0	0	0	0	—	—	No votes
Boulder 2008_0801307020	0	0	0	0	—	—	No votes
Boulder 20008_0801307200	0	0	0	0	—	—	No votes
Boulder 20108_0801307201	0	0	0	0	—	—	No votes
Boulder 20208_0801307202	0	0	0	0	—	—	No votes
Boulder 20308_0801307203	0	0	0	0	—	—	No votes
Boulder 20408_0801307204	0	0	0	0	—	—	No votes
Boulder 20508_0801307205	0	0	0	0	—	—	No votes
Boulder 20608_0801307206	0	0	0	0	—	—	No votes
Boulder 20708_0801307207	0	0	0	0	—	—	No votes
Boulder 20808_0801307208	0	0	0	0	—	—	No votes
Boulder 20908_0801307209	0	0	0	0	—	—	No votes
Boulder 2108_0801307021	0	0	0	0	—	—	No votes
Boulder 21008_0801307210	0	0	0	0	—	—	No votes
Boulder 21108_0801307211	0	0	0	0	—	—	No votes
Boulder 21208_0801307212	0	0	0	0	—	—	No votes
Boulder 21308_0801307213	0	0	0	0	—	—	No votes
Boulder 21408_0801307214	0	0	0	0	—	—	No votes
Boulder 21508_0801307215	0	0	0	0	—	—	No votes
Boulder 21608_0801307216	0	0	0	0	—	—	No votes
Boulder 21708_0801307217	0	0	0	0	—	—	No votes
Boulder 21808_0801307218	0	0	0	0	—	—	No votes
Boulder 21908_0801307219	0	0	0	0	—	—	No votes
Boulder 2208_0801307022	0	0	0	0	—	—	No votes
Boulder 22008_0801307220	0	0	0	0	—	—	No votes
Boulder 22108_0801307221	0	0	0	0	—	—	No votes
Boulder 22208_0801307222	0	0	0	0	—	—	No votes
Boulder 22308_0801307223	0	0	0	0	—	—	No votes
Boulder 22408_0801307224	0	0	0	0	—	—	No votes
Boulder 22508_0801307225	0	0	0	0	—	—	No votes
Boulder 22608_0801307226	0	0	0	0	—	—	No votes
Boulder 22708_0801307227	0	0	0	0	—	—	No votes
Boulder 22808_0801307228	0	0	0	0	—	—	No votes
Boulder 22908_0801307229	0	0	0	0	—	—	No votes
Boulder 2308_0801307023	0	0	0	0	—	—	No votes
Boulder 23008_0801307230	0	0	0	0	—	—	No votes
Boulder 23108_0801307231	0	0	0	0	—	—	No votes
Boulder 23208_0801307232	0	0	0	0	—	—	No votes
Boulder 23308_0801307233	0	0	0	0	—	—	No votes
Boulder 23408_0801307234	0	0	0	0	—	—	No votes
Boulder 2408_0801307024	0	0	0	0	—	—	No votes
Boulder 2508_0801307025	0	0	0	0	—	—	No votes
Boulder 2608_0801307026	0	0	0	0	—	—	No votes
Boulder 2708_0801307027	0	0	0	0	—	—	No votes
Boulder 2808_0801307028	0	0	0	0	—	—	No votes
Boulder 2908_0801307029	0	0	0	0	—	—	No votes
Boulder 308_0801307003	0	0	0	0	—	—	No votes
Boulder 3008_0801307030	0	0	0	0	—	—	No votes
Boulder 3108_0801307031	0	0	0	0	—	—	No votes
Boulder 3208_0801307032	0	0	0	0	—	—	No votes
Boulder 3308_0801307033	0	0	0	0	—	—	No votes
Boulder 3408_0801307034	0	0	0	0	—	—	No votes
Boulder 3508_0801307035	0	0	0	0	—	—	No votes
Boulder 3608_0801307036	0	0	0	0	—	—	No votes
Boulder 3708_0801307037	0	0	0	0	—	—	No votes
Boulder 3808_0801307038	0	0	0	0	—	—	No votes
Boulder 3908_0801307039	0	0	0	0	—	—	No votes
Boulder 408_0801307004	0	0	0	0	—	—	No votes
Boulder 4008_0801307040	0	0	0	0	—	—	No votes
Boulder 4108_0801307041	0	0	0	0	—	—	No votes
Boulder 4208_0801307042	0	0	0	0	—	—	No votes
Boulder 4308_0801307043	0	0	0	0	—	—	No votes
Boulder 4408_0801307044	0	0	0	0	—	—	No votes
Boulder 4508_0801307045	0	0	0	0	—	—	No votes
Boulder 4608_0801307046	0	0	0	0	—	—	No votes
Boulder 4708_0801307047	0	0	0	0	—	—	No votes
Boulder 4808_0801307048	0	0	0	0	—	—	No votes
Boulder 4908_0801307049	0	0	0	0	—	—	No votes
Boulder 508_0801307005	0	0	0	0	—	—	No votes
Boulder 5008_0801307050	0	0	0	0	—	—	No votes
Boulder 5108_0801307051	0	0	0	0	—	—	No votes
Boulder 5208_0801307052	0	0	0	0	—	—	No votes
Boulder 5308_0801307053	0	0	0	0	—	—	No votes
Boulder 5408_0801307054	0	0	0	0	—	—	No votes
Boulder 5508_0801307055	0	0	0	0	—	—	No votes
Boulder 5608_0801307056	0	0	0	0	—	—	No votes
Boulder 5708_0801307057	0	0	0	0	—	—	No votes
Boulder 5808_0801307058	0	0	0	0	—	—	No votes
Boulder 5908_0801307059	0	0	0	0	—	—	No votes
Boulder 608_0801307006	0	0	0	0	—	—	No votes
Boulder 6008_0801307060	0	0	0	0	—	—	No votes
Boulder 6108_0801307061	0	0	0	0	—	—	No votes
Boulder 6208_0801307062	0	0	0	0	—	—	No votes
Boulder 6308_0801307063	0	0	0	0	—	—	No votes
Boulder 6408_0801307064	0	0	0	0	—	—	No votes
Boulder 6508_0801307065	0	0	0	0	—	—	No votes
Boulder 6608_0801307066	0	0	0	0	—	—	No votes
Boulder 6708_0801307067	0	0	0	0	—	—	No votes
Boulder 6808_0801307068	0	0	0	0	—	—	No votes
Boulder 6908_0801307069	0	0	0	0	—	—	No votes
Boulder 708_0801307007	0	0	0	0	—	—	No votes
Boulder 7008_0801307070	0	0	0	0	—	—	No votes
Boulder 7108_0801307071	0	0	0	0	—	—	No votes
Boulder 7208_0801307072	0	0	0	0	—	—	No votes
Boulder 7308_0801307073	0	0	0	0	—	—	No votes
Boulder 7408_0801307074	0	0	0	0	—	—	No votes
Boulder 7508_0801307075	0	0	0	0	—	—	No votes
Boulder 7608_0801307076	0	0	0	0	—	—	No votes
Boulder 7708_0801307077	0	0	0	0	—	—	No votes
Boulder 7808_0801307078	0	0	0	0	—	—	No votes
Boulder 7908_0801307079	0	0	0	0	—	—	No votes
Boulder 808_0801307008	0	0	0	0	—	—	No votes
Boulder 8008_0801307080	0	0	0	0	—	—	No votes
Boulder 8108_0801307081	0	0	0	0	—	—	No votes
Boulder 8208_0801307082	0	0	0	0	—	—	No votes
Boulder 8308_0801307083	0	0	0	0	—	—	No votes
Boulder 8408_0801307084	0	0	0	0	—	—	No votes
Boulder 8508_0801307085	0	0	0	0	—	—	No votes
Boulder 8608_0801307086	0	0	0	0	—	—	No votes
Boulder 8708_0801307087	0	0	0	0	—	—	No votes
Boulder 8808_0801307088	0	0	0	0	—	—	No votes
Boulder 8908_0801307089	0	0	0	0	—	—	No votes
Boulder 908_0801307009	0	0	0	0	—	—	No votes
Boulder 9008_0801307090	0	0	0	0	—	—	No votes
Boulder 9108_0801307091	0	0	0	0	—	—	No votes
Boulder 9208_0801307092	0	0	0	0	—	—	No votes
Boulder 9308_0801307093	0	0	0	0	—	—	No votes
Boulder 9408_0801307094	0	0	0	0	—	—	No votes
Boulder 9508_0801307095	0	0	0	0	—	—	No votes
Boulder 9608_0801307096	0	0	0	0	—	—	No votes
Boulder 9708_0801307097	0	0	0	0	—	—	No votes
Boulder 9808_0801307098	0	0	0	0	—	—	No votes
Boulder 9908_0801307099	0	0	0	0	—	—	No votes

presidential history

Presidential margin, 1880–2024

Democratic minus Republican, by election

Presidential margin over time
Year	Margin (D minus R)
1880	−21.5%
1884	−17.5%
1888	−15.5%
1892	−36.4%
1896	+69.5%
1900	+15.2%
1904	−14.3%
1908	+7.9%
1912	+17.7%
1916	+28.4%
1920	−20.2%
1924	−33.4%
1928	−36.3%
1932	+5.5%
1936	+14.5%
1940	−7.5%
1944	−14.8%
1948	−7.8%
1952	−31.6%
1956	−34.3%
1960	−23.3%
1964	+13.3%
1968	−21.4%
1972	−15.7%
1976	−11.7%
1980	−14.1%
1984	−11.7%
1988	+8.5%
1992	+24.5%
1996	+17.6%
2000	+13.7%
2004	+33.9%
2008	+46.1%
2012	+41.8%
2016	+48.3%
2020	+56.6%
2024	+55.7%

DemocraticRepublican

38 presidential elections

Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle; not shown when either cycle is estimated or under source review. vs U.S. · margin relative to the national result that year.
Year	Won	Democratic	Republican	Other	Margin	Swing	vs U.S.	Total
2024	D	76.5%Harris150,149	20.8%Trump40,758	0.9%Kennedy1,754	D+55.7	R+0.8	D+57.2	196,304
2020	D	77.2%Biden159,089	20.6%Trump42,501	1.2%Jorgensen2,539	D+56.6	D+8.2	D+52.1	206,111
2016	D	70.3%Clinton132,334	22.0%Trump41,396	4.3%Johnson8,034	D+48.3	D+6.5	D+46.2	188,145
2012	D	69.7%Obama125,091	27.8%Romney49,981	2.5%	D+41.8	R+4.3	D+38.0	179,499
2008	D	72.3%Obama124,159	26.1%McCain44,904	1.6%	D+46.1	D+12.2	D+38.9	171,763
2004	D	66.3%Kerry105,564	32.4%Bush51,586	1.3%	D+33.9	D+20.2	D+36.4	159,259
2000	D	50.1%Gore69,983	36.4%Bush50,873	11.8%Nader16,498	D+13.7	R+3.9	D+13.2	139,626
1996	D	52.2%Clinton63,316	34.5%Dole41,922	5.6%Perot6,840	D+17.6	R+6.8	D+9.1	121,354
1992	D	50.9%Clinton64,567	26.5%Bush33,553	21.9%Perot27,762	D+24.5	D+16.0	D+18.9	126,771
1988	D	53.4%Dukakis57,265	44.9%Bush48,174	1.7%	D+8.5	D+20.1	D+16.2	107,223
1984	R	43.4%Mondale42,195	55.1%Reagan53,535	1.5%	R+11.7	D+2.4	D+6.6	97,223
1980	R	32.6%Carter28,422	46.7%Reagan40,698	20.6%	R+14.1	R+2.4	R+4.4	87,069
1976	R	41.0%Carter33,284	52.7%Ford42,830	6.3%	R+11.7	D+4.0	R+13.8	81,253
1972	R	41.1%McGovern29,484	56.8%Nixon40,766	2.1%	R+15.7	D+5.6	D+7.4	71,770
1968	R	36.3%Humphrey17,422	57.7%Nixon27,671	6.0%	R+21.4	R+34.7	R+20.7	47,988
1964	D	56.4%Johnson22,737	43.1%Goldwater17,373	0.5%	D+13.3	D+36.6	R+9.3	40,330
1960	R	38.1%Kennedy12,276	61.5%Nixon19,791	0.4%	R+23.3	D+11.0	R+23.5	32,197
1956	R	32.5%Stevenson8,149	66.9%Eisenhower16,748	0.6%	R+34.3	R+2.7	R+18.9	25,039
1952	R	33.7%Stevenson7,767	65.3%Eisenhower15,069	1.1%	R+31.6	R+23.9	R+20.9	23,079
1948	R	44.3%Truman8,792	52.1%Dewey10,335	3.6%	R+7.8	D+7.1	R+12.3	19,839
1944	R	42.3%Roosevelt7,442	57.1%Dewey10,054	0.6%	R+14.8	R+7.3	R+22.3	17,610
1940	R	45.7%Roosevelt9,039	53.2%Willkie10,525	1.1%	R+7.5	R+22.1	R+17.5	19,776
1936	D	55.9%Roosevelt9,788	41.4%Landon7,244	2.7%	D+14.5	D+9.0	R+9.7	17,501
1932	D	50.4%Roosevelt8,412	44.8%Hoover7,487	4.8%	D+5.5	D+41.9	R+12.3	16,707
1928	R	31.1%Smith4,363	67.5%Hoover9,457	1.4%	R+36.3	R+2.9	R+18.9	14,015
1924	R	25.3%Davis3,273	58.8%Coolidge7,595	15.5%La Follette2,007	R+33.4	R+13.2	R+8.3	12,927
1920	R	37.7%Cox4,200	57.9%Harding6,456	4.4%	R+20.2	R+48.7	D+6.0	11,148
1916	D	61.5%Wilson7,419	33.0%Hughes3,986	5.5%	D+28.4	D+10.7	D+25.3	12,071
1912	D	40.8%Wilson4,330	23.0%Taft2,445	36.2%	D+17.7	D+9.9	R+1.8	10,620
1908	D	49.6%Bryan5,772	41.8%Taft4,856	8.6%	D+7.9	D+22.2	D+17.4	11,629
1904	R	39.6%Parker4,030	53.9%Roosevelt5,483	6.5%	R+14.3	R+29.5	D+5.4	10,172
1900	D	55.8%Bryan5,117	40.6%McKinley3,719	3.6%	D+15.2	R+54.3	D+22.8	9,168
1896	D	83.9%Bryan6,046	14.3%McKinley1,033	1.8%	D+69.5	D+106.0	D+75.6	7,209
1892	O	0.0%Cleveland0	36.4%Harrison1,338	63.6%	Weaver +27.2	R+20.9	R+38.1	3,674
1888	R	39.4%Cleveland1,176	55.0%Harrison1,639	5.6%	R+15.5	D+2.0	—	2,981
1884	R	34.1%Cleveland954	51.6%Blaine1,445	14.4%	R+17.5	D+4.0	—	2,801
1880	R	33.1%Hancock796	54.7%Garfield1,313	12.2%	R+21.5	—	—	2,402
1876	—	—	—	—	No data	—	—	—

Federal and statewide elections · 3 House · 37 Senate · 3 Senate special · 12 governor

U.S. House

Each row shows U.S. House votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.

Source · Akashic actual-race rollup from certified returns, House; geographic aggregation.
Year	Vote lead	Democratic	Republican	Total
2024	D	78.6%145,762	21.4%39,641	185,403
2020	D	76.7%150,049	23.3%45,689	195,738
2018	D	66.1%31,304	33.9%16,050	47,354

U.S. Senate

Each row shows U.S. Senate votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.

Sources · MIT Election Data and Science Lab (MEDSL); Amlani & Algara 2021 (Harvard Dataverse doi:10.7910/DVN/DGUMFI); upstream CQ Press + ICPSR · CC BY 4.0 / CC0 1.0.
Year	Vote lead	Democratic	Republican	Total
2022	D	77.5%128,227	20.5%33,858	165,434
2020Class II	D	75.2%John Hickenlooper154,552	23.0%Cory Gardner47,321	205,536
2016Class III	D	68.0%Michael Bennet126,334	24.6%Darryl Glenn45,755	185,820
2014Class II	D	68.6%Mark Udall97,612	27.4%Cory Gardner38,931	142,321
2010Class III	D	67.3%Michael Bennet84,264	28.3%Ken Buck35,450	125,265
2008Class II	D	70.5%Mark Udall117,042	26.1%Bob Schaffer43,375	166,096
2004Class III	D	67.6%Ken Salazar106,481	30.4%Pete Coors47,899	157,414
2002Class II	D	62.4%Tom Strickland66,407	34.7%Wayne Allard36,911	106,433
1998Class III	D	50.4%Dottie Lamm53,267	46.8%Ben Nighthorse Campbell49,457	105,771
1996Class II	D	58.4%Tom Strickland70,013	37.9%Wayne Allard45,419	119,790
1992Class III	D	61.9%Ben Nighthorse Campbell79,437	32.0%Terry Considine41,118	128,359
1990Class II	D	53.0%Josie Heath42,628	45.0%Hank Brown36,232	80,445
1986Class III	D	60.4%Timothy Wirth50,425	38.4%Ken Kramer32,078	83,526
1984Class II	R	43.1%Nancy Dick43,588	55.6%William L. Armstrong56,288	101,201
1980Class III	D	56.9%Gary Hart51,770	42.4%Mary E. Buchanan38,608	91,041
1978Class II	R	45.7%Floyd K. Haskell28,530	53.5%William L. Armstrong33,417	62,418
1974Class III	D	60.9%Gary Hart37,529	36.2%Peter H. Dominick22,299	61,623
1972Class II	D	52.7%Floyd K. Haskell36,529	45.6%Gordon Allott31,630	69,358
1968Class III	R	35.5%Stephen McNichols16,281	64.5%Peter H. Dominick29,564	45,845
1966Class II	R	37.2%Roy Romer11,788	62.7%Gordon Allott19,885	31,726
1962Class III	R	40.4%John Carroll11,320	58.9%Peter H. Dominick16,503	27,995
1960Class II	R	39.6%Robert L. Knous12,339	60.1%Gordon Allott18,742	31,186
1956Class III	R	43.8%John A. Carroll10,403	56.2%Dan Thornton13,341	23,744
1954Class II	R	42.8%John A. Carroll7,548	57.2%Gordon Allott10,084	17,632
1950Class III	R	43.9%John A. Carroll7,694	56.1%Eugene D. Millikin9,851	17,545
1948Class II	D	61.9%Edwin C. Johnson12,265	36.2%Will F. Nicholson7,178	19,824
1942Class II	D	50.8%Edwin C. Johnson6,474	48.4%Ralph L. Carr6,170	12,735
1938Class III	D	54.5%Alva B. Adams8,718	43.7%Archibald A. Lee6,996	16,006
1936Class II	D	60.6%Edwin C. Johnson9,740	37.7%Raymond L. Sauter6,062	16,066
1932Class III	R	48.4%Alva B. Adams6,816	48.5%Karl C. Schuyler6,833	14,079
1930Class II	D	60.2%Edward P. Costigan6,960	38.6%George H. Shaw4,457	11,556
1926Class III	R	47.4%William E. Sweet5,355	49.3%Charles W. Waterman5,577	11,309
1924Class II	R	41.8%Alva B. Adams5,224	53.1%Lawrence C. Phipps6,631	12,493
1920Class III	R	38.5%Tully Scot4,129	55.6%Samuel D. Nicholson5,961	10,720
1918Class II	D	51.6%John Shafroth4,109	46.2%Lawrence C. Phipps3,681	7,966
1914Class III	R	41.0%Charles S. Thomas4,024	44.0%Hubert Work4,315	9,813
1912Class II	D	45.3%John F. Shafroth4,415	28.3%Clyde Dawson2,756	9,748

U.S. Senate special elections

Each row shows U.S. Senate special votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.

Source · Amlani & Algara 2021 (Harvard Dataverse doi:10.7910/DVN/DGUMFI); upstream CQ Press + ICPSR · CC0 1.0.
Year	Vote lead	Democratic	Republican	Total
1942Special · Class III	R	38.1%James A. Marsh4,768	60.0%Eugene D. Millikin7,521	12,530
1924Special · Class III	R	45.1%Morrison Shafroth5,590	49.8%Rice W. Means6,163	12,382
1912Special · Class III	D	44.0%Charles Thomas4,264	28.5%Hubert Work2,766	9,700

Governor

Each row shows Governor votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.

Sources · MIT Election Data and Science Lab (MEDSL); Amlani & Algara 2021 (Harvard Dataverse doi:10.7910/DVN/DGUMFI); upstream CQ Press + ICPSR · CC BY 4.0 / CC0 1.0.
Year	Vote lead	Democratic	Republican	Total
2022	D	80.1%Jared Polis132,173	18.4%Heidi Ganahl30,454	165,077
2018	D	75.5%Jared Polis / Dianne Primavera133,116	21.8%Walker Stapleton / Lang Sias38,423	176,262
2014	D	68.1%John Hickenlooper96,565	26.0%Bob Beauprez36,868	141,760
2010	D	70.0%John Hickenlooper87,878	5.4%Dan Maes6,772	125,486
2006	D	71.2%Bill Ritter84,235	26.2%Bob Beauprez30,974	118,331
2002	D	47.8%Rollie Heath50,829	44.1%Bill Owens46,964	106,436
1998	D	60.0%Gail Schoettler63,185	37.5%Bill Owens39,487	105,353
1994	D	67.4%Roy Romer60,182	26.4%Bruce D. Benson23,529	89,272
1990	D	71.7%Roy Romer56,126	25.5%John Andrews19,986	78,317
1986	D	64.3%Roy Romer53,291	35.2%Ted L. Strickland29,143	82,862
1982	D	71.4%Richard Lamm52,672	25.8%John Fuhr19,004	73,766
1978	D	64.5%Richard Lamm39,851	33.1%Ted L. Strickland20,467	61,825

voter registration

Registered voters

By party of registration, over time

Party registration · 2024D+28.0

Presidential vote · 2024D+55.7

Registration leans Democratic; the presidential vote runs 28 points more Republican.

DemocraticRepublicanUnaffiliatedOther parties

Voter registration in Boulder County, CO
Year	Total registered	Democratic	Republican	Unaffiliated	Other
2016	266,217	113,733	45,569	101,653	5,262
2018	251,112	107,352	37,701	101,246	4,813
2020	257,455	109,959	34,264	109,012	4,220
2022	258,327	105,079	29,623	119,557	4,068
2024	266,648	102,792	28,261	130,436	5,159

domestic migration

Who moves in and out

Net migration over time, and who arrivals are — where they came from and what those places vote

−2,248 net domestic migration · 2025

20112025

Net +2,985 over 2011–2025 · gain loss

Arrivals reported $98,090 in average income, against $156,073 for residents who stayed — 37% lower. (IRS SOI, 2022–23)

The places arrivals came from lean D+21.6 on average — 34 points more Republican-leaning than Boulder County, CO itself (D+55.7).

Where arrivals came from lean of each source

Denver County, CO1,036D+56.1
Weld County, CO848R+21.0
Jefferson County, CO813D+19.5
Adams County, CO745D+9.0
Larimer County, CO742D+17.6
Broomfield County, CO671D+28.5

Where departures went households, 2022–23

Weld County, CO1,534
Denver County, CO1,300
Jefferson County, CO1,060
Larimer County, CO984
Adams County, CO960
Broomfield County, CO791

Migration is one input to a place’s political change, not its cause — a shift can also come from residents changing their minds, generational turnover, or turnout. These figures describe the places people moved between; they do not measure how any mover voted.

Domestic migration in Boulder County, CO in Boulder County, CO: net domestic migration by year
Year	Net domestic migration
2011	+2,416
2012	+2,401
2013	+2,715
2014	+788
2015	+3,499
2016	+1,288
2017	−423
2018	+491
2019	−42
2021	−4,247
2022	−624
2023	−1,976
2024	−1,053
2025	−2,248

Boulder County's D+55.8 margin in 2024 makes it an outlier even among Front Range urban counties, driven by a dense concentration of university employment, graduate-degree holders, and white-collar tech workers clustered around CU Boulder.

Across the recorded series it reached a Democratic high of 69.5 points in 1896 and a Republican high of 36.4 points in 1892. Between 2020 and 2024 the county moved 0.8 points toward the Republican candidate; the 2024 margin was 55.7 points.

A population of 328,961, a 75% non-Hispanic-white share, and a median household income of $103,994 describe the county. The county's voting pattern over the last decade is most similar to that of Orange County and Alexandria city.

Political twins — counties

The counties whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.

Orange County

North Carolina

97.0twin score

2004–2024 trajectory≠ % Asian

Alexandria city

Virginia

96.9twin score

2004–2024 trajectory≠ % Black

Marin County

California

96.4twin score

2008–2024 trajectory≠ median income

Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.

Browse places by community — income, education, race & ethnicity, language — all community cuts →

Compare two places, side by side

Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →

Cite this page

All citations released under CC BY 4.0. Attribution: Akashic Intelligence.

Boulder County, Colorado. Akashic. https://akashic.app/county/08013/. Accessed May 20, 2026. License: CC BY 4.0.

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Cities & towns in Boulder County

Colorado at the ballot boxAll elections →

Presidentcounty detail2024 US Senatestatewide2022 Governorstate + county2022 US Houseall districts2024

Frequently asked questions

How did Boulder County, Colorado vote in 2024?

In 2024, Boulder County, Colorado voted Democratic by 55.7 points (D+55.7), carried by the Democratic candidate. Out of 196,304 votes cast, 150,149 went Democratic and 40,758 went Republican.

When did Boulder County, Colorado last vote Republican?

The most recent presidential election in which Boulder County, Colorado voted Republican was 1984.

How many people live in Boulder County, Colorado?

Boulder County, Colorado has a population of 328,961 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.

What is the median household income in Boulder County, Colorado?

Median household income in Boulder County, Colorado is $103,994 — above the national median of $80,734. The Colorado state median is $95,470.

What is the political history of Boulder County, Colorado?

Akashic tracks 38 presidential elections in Boulder County, Colorado from 1876 to 2024. Of those, 18 went Democratic and 18 went Republican.

Measure

Boulder County

Colorado

United States

Median age

37.7

37.9

39.1

Age 18–24

15.4%

9.2%

Age 65 and older

16.3%

15.5%

17.2%

Measure

Boulder County

Colorado

United States

Median household income

$103,994

$95,470

$84,427

Poverty rate

11.2%

9.5%

12.5%

Bachelor's degree or higher (25+)

64.2%

45.5%

35.6%

Measure

Boulder County

Colorado

United States

Speaks a non-English language at home

15.1%

16.2%

22.3%

Spanish

8.2%

11.1%

13.6%

Other Indo-European

1.7%

1.0%

2.0%

Chinese (incl. Mandarin & Cantonese)

1.1%

0.5%

1.1%

Other Asian & Pacific Island

1.0%

0.7%

1.1%

Measure

Boulder County

Colorado

United States

Catholic

16.0%

15.1%

18.6%

Evangelical Protestant

12.6%

11.7%

16.5%

Unclaimed / not counted

63.7%

64.7%

51.5%

Key facts

2024 presidential margin

D+55.7MIT Election Lab

Population

328,9612024 5-year

Median household income

$103,9942024 5-year

White (non-Hispanic)

74.5%2024 5-year

Black

0.8%2024 5-year

Hispanic / Latino

14.7%2024 5-year

Peak Democratic margin

D+69.5 in 1896MIT Election Lab

Peak Republican margin

R+36.4 in 1892MIT Election Lab

Most similar

Orange County, NC · twin score 97.0

Election

Participants

CVAP

Turnout

Quality

2016 · Presidential

193,784

232,475

83.4%

A/A

2018 · Midterm

179,882

239,847

75.0%

A/A

2020 · Presidential

211,481

246,488

85.8%

A/A

2022 · Midterm

168,783

253,803

66.5%

C/A

2024 · Presidential

198,885

256,370

77.6%

A/A

Boulder County precinct-level presidential election results for 2024

Precinct -21719074002171907400

1,511

582

2,171

69.6%

26.8%

D+42.8

Precinct -21812075042181207504

1,826

230

2,115

86.3%

10.9%

D+75.5

Precinct -21711076512171107651

1,176

581

1,798

65.4%

32.3%

D+33.1

Precinct -21812075072181207507

1,336

367

1,740

76.8%

21.1%

D+55.7

Precinct -21712073022171207302

1,315

314

1,682

78.2%

18.7%

D+59.5

Precinct -21711076102171107610

1,210

419

1,670

72.5%

25.1%

D+47.4

Precinct -21711076152171107615

1,304

303

1,643

79.4%

18.4%

D+60.9

Precinct -21719074042171907404

1,093

489

1,632

67.0%

30.0%

D+37.0

Precinct -21712073002171207300

1,130

424

1,601

70.6%

26.5%

D+44.1

Precinct -21549079122154907912

1,242

307

1,587

78.3%

19.3%

D+58.9

Precinct -21711076002171107600

1,150

404

1,584

72.6%

25.5%

D+47.1

Precinct -21711076072171107607

1,192

344

1,578

75.5%

21.8%

D+53.7

Precinct -21810078402181007840

1,372

151

1,556

88.2%

9.7%

D+78.5

Precinct -21849078152184907815

1,334

187

1,555

85.8%

12.0%

D+73.8

Precinct -21810078032181007803

1,328

168

1,538

86.3%

10.9%

D+75.4

Precinct -21719076192171907619

949

542

1,529

62.1%

35.4%

D+26.6

Precinct -21810078172181007817

1,340

140

1,526

87.8%

9.2%

D+78.6

Precinct -21719076202171907620

1,007

467

1,521

66.2%

30.7%

D+35.5

Precinct -21849078452184907845

1,325

139

1,507

87.9%

9.2%

D+78.7

Precinct -21712073012171207301

1,153

313

1,503

76.7%

20.8%

D+55.9

Precinct -21719074062171907406

961

495

1,502

64.0%

33.0%

D+31.0

Precinct -21711076092171107609

1,121

326

1,485

75.5%

22.0%

D+53.5

Precinct -21810078252181007825

1,326

113

1,470

90.2%

7.7%

D+82.5

Precinct -21849078272184907827

1,283

133

1,457

88.1%

9.1%

D+78.9

Precinct -21711076062171107606

1,047

361

1,432

73.1%

25.2%

D+47.9

Precinct -21812071052181207105

1,099

282

1,431

76.8%

19.7%

D+57.1

Precinct -21719074012171907401

1,027

355

1,429

71.9%

24.8%

D+47.0

Precinct -21810078202181007820

1,150

238

1,427

80.6%

16.7%

D+63.9

Precinct -21812075092181207509

1,130

255

1,422

79.5%

17.9%

D+61.5

Precinct -21812072072181207207

1,172

216

1,417

82.7%

15.2%

D+67.5

Precinct -21812075082181207508

1,073

298

1,414

75.9%

21.1%

D+54.8

Precinct -21849078562184907856

1,222

144

1,398

87.4%

10.3%

D+77.1

Precinct -21810078322181007832

1,101

252

1,394

79.0%

18.1%

D+60.9

Precinct -21812072042181207204

1,144

223

1,393

82.1%

16.0%

D+66.1

Precinct -21711076492171107649

870

471

1,390

62.6%

33.9%

D+28.7

Precinct -21711076242171107624

1,031

315

1,386

74.4%

22.7%

D+51.7

Precinct -21711076232171107623

908

432

1,385

65.6%

31.2%

D+34.4

Precinct -21810078192181007819

1,154

173

1,379

83.7%

12.5%

D+71.1

Precinct -21712073142171207314

1,120

207

1,370

81.8%

15.1%

D+66.6

Precinct -21719074022171907402

987

329

1,358

72.7%

24.2%

D+48.5

Precinct -21711076082171107608

984

344

1,355

72.6%

25.4%

D+47.2

Precinct -21810078302181007830

1,173

143

1,347

87.1%

10.6%

D+76.5

Precinct -21712073102171207310

1,051

260

1,345

78.1%

19.3%

D+58.8

Precinct -21810078182181007818

1,103

189

1,337

82.5%

14.1%

D+68.4

Precinct -21711076032171107603

988

334

1,336

74.0%

25.0%

D+49.0

Precinct -21812075062181207506

1,027

252

1,310

78.4%

19.2%

D+59.2

Precinct -21719074032171907403

946

333

1,306

72.4%

25.5%

D+46.9

Precinct -21812071002181207100

900

354

1,301

69.2%

27.2%

D+42.0

Precinct -21711076162171107616

977

270

1,293

75.6%

20.9%

D+54.7

Precinct -21812071062181207106

996

258

1,280

77.8%

20.2%

D+57.7

Precinct -21810078292181007829

1,018

222

1,277

79.7%

17.4%

D+62.3

Precinct -21719076372171907637

789

461

1,273

62.0%

36.2%

D+25.8

Precinct -21812075022181207502

931

295

1,269

73.4%

23.2%

D+50.1

Precinct -21812072102181207210

1,067

158

1,253

85.2%

12.6%

D+72.5

Precinct -21810078222181007822

1,059

137

1,245

85.1%

11.0%

D+74.1

Precinct -21810078082181007808

1,055

159

1,238

85.2%

12.8%

D+72.4

Precinct -21549079152154907915

959

247

1,237

77.5%

20.0%

D+57.6

Precinct -21719076362171907636

800

400

1,230

65.0%

32.5%

D+32.5

Precinct -21812072092181207209

979

222

1,228

79.7%

18.1%

D+61.6

Precinct -21711076262171107626

860

313

1,208

71.2%

25.9%

D+45.3

Precinct -21712073132171207313

954

210

1,204

79.2%

17.4%

D+61.8

Precinct -21712073162171207316

876

287

1,189

73.7%

24.1%

D+49.5

Precinct -21812071012181207101

911

245

1,175

77.5%

20.9%

D+56.7

Precinct -21849078552184907855

1,056

1,172

90.1%

8.1%

D+82.0

Precinct -21711076182171107618

777

352

1,170

66.4%

30.1%

D+36.3

Precinct -21810078162181007816

1,016

117

1,162

87.4%

10.1%

D+77.4

Precinct -21512077002151207700

834

292

1,152

72.4%

25.3%

D+47.0

Precinct -21849078042184907804

961

157

1,148

83.7%

13.7%

D+70.0

Precinct -21810078092181007809

966

148

1,143

84.5%

12.9%

D+71.6

Precinct -21549077012154907701

751

360

1,136

66.1%

31.7%

D+34.4

Precinct -21810078332181007833

929

159

1,134

81.9%

14.0%

D+67.9

Precinct -21810078392181007839

997

104

1,125

88.6%

9.2%

D+79.4

Precinct -21810078062181007806

984

106

1,122

87.7%

9.4%

D+78.3

Precinct -21810078502181007850

971

111

1,119

86.8%

9.9%

D+76.9

Precinct -21711076172171107617

732

343

1,105

66.2%

31.0%

D+35.2

Precinct -21711076452171107645

752

318

1,102

68.2%

28.9%

D+39.4

Precinct -21812075002181207500

815

249

1,099

74.2%

22.7%

D+51.5

Precinct -21549079162154907916

803

260

1,093

73.5%

23.8%

D+49.7

Precinct -21719074052171907405

706

354

1,093

64.6%

32.4%

D+32.2

Precinct -21712073062171207306

880

181

1,088

80.9%

16.6%

D+64.2

Precinct -21711076422171107642

739

320

1,084

68.2%

29.5%

D+38.7

Precinct -21812072122181207212

883

166

1,078

81.9%

15.4%

D+66.5

Precinct -21812075102181207510

701

343

1,072

65.4%

32.0%

D+33.4

Precinct -21712073072171207307

779

260

1,065

73.1%

24.4%

D+48.7

Precinct -21810078432181007843

928

1,050

88.4%

8.7%

D+79.7

Precinct -21812072002181207200

838

177

1,049

79.9%

16.9%

D+63.0

Precinct -21712073092171207309

815

206

1,044

78.1%

19.7%

D+58.3

Precinct -21549079042154907904

834

160

1,037

80.4%

15.4%

D+65.0

Precinct -21711076342171107634

671

330

1,036

64.8%

31.9%

D+32.9

Precinct -21719076352171907635

669

340

1,036

64.6%

32.8%

D+31.8

Precinct -21810078422181007842

845

159

1,036

81.6%

15.3%

D+66.2

Precinct -21810078382181007838

848

149

1,027

82.6%

14.5%

D+68.1

Precinct -21711076052171107605

725

267

1,022

70.9%

26.1%

D+44.8

Precinct -21849078052184907805

883

108

1,021

86.5%

10.6%

D+75.9

Precinct -21711076502171107650

580

417

1,017

57.0%

41.0%

D+16.0

Precinct -21812071032181207103

726

264

1,017

71.4%

26.0%

D+45.4

Precinct -21810078022181007802

826

160

1,013

81.5%

15.8%

D+65.7

Precinct -21712073122171207312

781

209

1,006

77.6%

20.8%

D+56.9

Precinct -21711076292171107629

662

317

1,005

65.9%

31.5%

D+34.3

Precinct -21711076122171107612

689

279

997

69.1%

28.0%

D+41.1

Precinct -21711076252171107625

670

286

986

68.0%

29.0%

D+38.9

Precinct -21810078312181007831

709

251

980

72.3%

25.6%

D+46.7

Precinct -21812072062181207206

848

105

979

86.6%

10.7%

D+75.9

Precinct -21711076112171107611

723

225

975

74.2%

23.1%

D+51.1

Precinct -21812071042181207104

683

273

974

70.1%

28.0%

D+42.1

Precinct -21712073052171207305

754

176

963

78.3%

18.3%

D+60.0

Precinct -21810078072181007807

819

119

962

85.1%

12.4%

D+72.8

Precinct -21812071022181207102

705

224

955

73.8%

23.5%

D+50.4

Precinct -21711076042171107604

682

235

939

72.6%

25.0%

D+47.6

Precinct -21712073082171207308

748

167

938

79.7%

17.8%

D+61.9

Precinct -21712073042171207304

755

160

934

80.8%

17.1%

D+63.7

Precinct -21812072052181207205

778

128

934

83.3%

13.7%

D+69.6

Precinct -21812072012181207201

729

183

931

78.3%

19.7%

D+58.6

Precinct -21810078232181007823

770

110

925

83.2%

11.9%

D+71.4

Precinct -21812072082181207208

719

176

925

77.7%

19.0%

D+58.7

Precinct -21810078112181007811

798

919

86.8%

9.9%

D+76.9

Precinct -21810078342181007834

791

916

86.4%

9.6%

D+76.7

Precinct -21711076132171107613

637

254

915

69.6%

27.8%

D+41.9

Precinct -21810078002181007800

724

161

914

79.2%

17.6%

D+61.6

Precinct -21810078492181007849

795

914

87.0%

10.1%

D+76.9

Precinct -21810078132181007813

807

908

88.9%

8.7%

D+80.2

Precinct -21711076012171107601

671

207

902

74.4%

22.9%

D+51.4

Precinct -21810078212181007821

770

899

85.7%

10.8%

D+74.9

Precinct -21711076282171107628

585

267

872

67.1%

30.6%

D+36.5

Precinct -21849078442184907844

766

872

87.8%

10.2%

D+77.6

Precinct -21711076272171107627

558

290

868

64.3%

33.4%

D+30.9

Precinct -21549079012154907901

587

245

864

67.9%

28.4%

D+39.6

Precinct -21849078572184907857

749

842

89.0%

8.1%

D+80.9

Precinct -21711076382171107638

516

301

839

61.5%

35.9%

D+25.6

Precinct -21711076482171107648

546

267

838

65.2%

31.9%

D+33.3

Precinct -21810078412181007841

699

105

838

83.4%

12.5%

D+70.9

Precinct -21812072032181207203

661

152

836

79.1%

18.2%

D+60.9

Precinct -21549079112154907911

706

116

834

84.7%

13.9%

D+70.7

Precinct -21711076222171107622

531

267

833

63.7%

32.1%

D+31.7

Precinct -21812075052181207505

620

185

826

75.1%

22.4%

D+52.7

Precinct -21812075012181207501

670

126

814

82.3%

15.5%

D+66.8

Precinct -21712073032171207303

647

136

802

80.7%

17.0%

D+63.7

Precinct -21711076472171107647

521

246

798

65.3%

30.8%

D+34.5

Precinct -21549079072154907907

644

131

795

81.0%

16.5%

D+64.5

Precinct -21719076212171907621

476

288

789

60.3%

36.5%

D+23.8

Precinct -21810078242181007824

661

784

84.3%

12.2%

D+72.1

Precinct -21711076322171107632

518

247

783

66.2%

31.5%

D+34.6

Precinct -21849078542184907854

692

776

89.2%

8.4%

D+80.8

Precinct -21712073152171207315

561

170

756

74.2%

22.5%

D+51.7

Precinct -21711076442171107644

514

212

751

68.4%

28.2%

D+40.2

Precinct -21812072112181207211

561

163

744

75.4%

21.9%

D+53.5

Precinct -21849078142184907814

624

737

84.7%

13.3%

D+71.4

Precinct -21810078262181007826

637

735

86.7%

9.9%

D+76.7

Precinct -21711076432171107643

474

235

734

64.6%

32.0%

D+32.6

Precinct -21712073112171207311

590

124

724

81.5%

17.1%

D+64.4

Precinct -21711076332171107633

453

242

722

62.7%

33.5%

D+29.2

Precinct -21810078122181007812

618

720

85.8%

12.1%

D+73.8

Precinct -21711076402171107640

472

222

717

65.8%

31.0%

D+34.9

Precinct -21711076392171107639

455

243

716

63.5%

33.9%

D+29.6

Precinct -21849078532184907853

626

711

88.0%

10.3%

D+77.8

Precinct -21812072022181207202

586

104

703

83.4%

14.8%

D+68.6

Precinct -21711076022171107602

468

206

700

66.9%

29.4%

D+37.4

Precinct -21711076312171107631

410

260

692

59.2%

37.6%

D+21.7

Precinct -21810078462181007846

631

688

91.7%

7.1%

D+84.6

Precinct -21810078472181007847

566

672

84.2%

10.7%

D+73.5

Precinct -21711076412171107641

399

240

663

60.2%

36.2%

D+24.0

Precinct -21711076462171107646

426

218

660

64.5%

33.0%

D+31.5

Precinct -21810078102181007810

541

636

85.1%

10.7%

D+74.4

Precinct -21810078372181007837

546

634

86.1%

12.8%

D+73.3

Precinct -21549079032154907903

503

626

80.4%

15.7%

D+64.7

Precinct -21711076302171107630

391

202

611

64.0%

33.1%

D+30.9

Precinct -21849078282184907828

532

609

87.4%

11.0%

D+76.4

Precinct -21810078482181007848

493

590

83.6%

12.4%

D+71.2

Precinct -21849078522184907852

499

589

84.7%

11.5%

D+73.2

Precinct -21711076142171107614

429

147

588

73.0%

25.0%

D+48.0

Precinct -21549079102154907910

457

577

79.2%

17.0%

D+62.2

Precinct -21549077022154907702

348

211

573

60.7%

36.8%

D+23.9

Precinct -21549077042154907704

287

261

567

50.6%

46.0%

D+4.6

Precinct -21549077052154907705

252

302

563

44.8%

53.6%

R+8.9

Precinct -21549079132154907913

438

549

79.8%

17.5%

D+62.3

Precinct -21719074082171907408

324

202

546

59.3%

37.0%

D+22.3

Precinct -21810078362181007836

450

538

83.6%

14.3%

D+69.3

Precinct -21810078352181007835

459

528

86.9%

11.6%

D+75.4

Precinct -21549079092154907909

454

511

88.8%

8.4%

D+80.4

Precinct -21810078512181007851

439

499

88.0%

9.0%

D+79.0

Precinct -21549079062154907906

359

111

485

74.0%

22.9%

D+51.1

Precinct -21812075032181207503

308

129

458

67.2%

28.2%

D+39.1

Precinct -21549079052154907905

375

447

83.9%

11.4%

D+72.5

Precinct -21549079002154907900

366

433

84.5%

12.9%

D+71.6

Precinct -21549079142154907914

275

135

422

65.2%

32.0%

D+33.2

Precinct -21810078012181007801

344

416

82.7%

13.7%

D+69.0

Precinct -21719074072171907407

243

148

405

60.0%

36.5%

D+23.5

Precinct -21549079082154907908

240

348

69.0%

26.7%

D+42.2

Precinct -21549079022154907902

211

269

78.4%

17.5%

D+61.0

Precinct -21511077032151107703

103

166

62.0%

33.7%

D+28.3

Boulder 108_0801307001

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No votes

Boulder 1008_0801307010

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Boulder 10008_0801307100

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Boulder 10108_0801307101

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Boulder 10208_0801307102

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Boulder 10308_0801307103

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Boulder 10508_0801307105

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Boulder 10608_0801307106

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Boulder 10708_0801307107

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Boulder 10808_0801307108

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Boulder 10908_0801307109

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Boulder 1108_0801307011

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Boulder 11008_0801307110

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Boulder 11108_0801307111

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Boulder 11208_0801307112

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Boulder 11308_0801307113

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Boulder 11408_0801307114

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Boulder 11508_0801307115

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Boulder 11608_0801307116

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Boulder 11708_0801307117

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Boulder 11808_0801307118

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Boulder 11908_0801307119

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Boulder 12008_0801307120

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Boulder 12408_0801307124

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Boulder 12508_0801307125

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Boulder 12608_0801307126

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Boulder 12708_0801307127

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Boulder 12808_0801307128

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Boulder 12908_0801307129

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Boulder 1308_0801307013

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Boulder 13608_0801307136

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Boulder 13708_0801307137

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Boulder 13808_0801307138

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Boulder 13908_0801307139

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Boulder 1408_0801307014

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Boulder 14008_0801307140

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Boulder 14108_0801307141

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Boulder 14608_0801307146

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Boulder 15408_0801307154

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Boulder 15908_0801307159

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Boulder 16308_0801307163

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Boulder 16608_0801307166

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Boulder 16708_0801307167

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Boulder 16808_0801307168

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Boulder 16908_0801307169

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Boulder 1708_0801307017

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Boulder 17008_0801307170

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Boulder 17108_0801307171

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No votes

Boulder 17208_0801307172

—

No votes

Boulder 17308_0801307173

—

No votes

Boulder 17408_0801307174

—

No votes

Boulder 17508_0801307175

—

No votes

Boulder 17608_0801307176

—

No votes

Boulder 17708_0801307177

—

No votes

Boulder 17808_0801307178

—

No votes

Boulder 17908_0801307179

—

No votes

Boulder 1808_0801307018

—

No votes

Boulder 18008_0801307180

—

No votes

Boulder 18108_0801307181

—

No votes

Boulder 18208_0801307182

—

No votes

Boulder 18308_0801307183

—

No votes

Boulder 18408_0801307184

—

No votes

Boulder 18508_0801307185

—

No votes

Boulder 18608_0801307186

—

No votes

Boulder 18708_0801307187

—

No votes

Boulder 18808_0801307188

—

No votes

Boulder 18908_0801307189

—

No votes

Boulder 1908_0801307019

—

No votes

Boulder 19008_0801307190

—

No votes

Boulder 19108_0801307191

—

No votes

Boulder 19208_0801307192

—

No votes

Boulder 19308_0801307193

—

No votes

Boulder 19408_0801307194

—

No votes

Boulder 19508_0801307195

—

No votes

Boulder 19608_0801307196

—

No votes

Boulder 19708_0801307197

—

No votes

Boulder 19808_0801307198

—

No votes

Boulder 19908_0801307199

—

No votes

Boulder 208_0801307002

—

No votes

Boulder 2008_0801307020

—

No votes

Boulder 20008_0801307200

—

No votes

Boulder 20108_0801307201

—

No votes

Boulder 20208_0801307202

—

No votes

Boulder 20308_0801307203

—

No votes

Boulder 20408_0801307204

—

No votes

Boulder 20508_0801307205

—

No votes

Boulder 20608_0801307206

—

No votes

Boulder 20708_0801307207

—

No votes

Boulder 20808_0801307208

—

No votes

Boulder 20908_0801307209

—

No votes

Boulder 2108_0801307021

—

No votes

Boulder 21008_0801307210

—

No votes

Boulder 21108_0801307211

—

No votes

Boulder 21208_0801307212

—

No votes

Boulder 21308_0801307213

—

No votes

Boulder 21408_0801307214

—

No votes

Boulder 21508_0801307215

—

No votes

Boulder 21608_0801307216

—

No votes

Boulder 21708_0801307217

—

No votes

Boulder 21808_0801307218

—

No votes

Boulder 21908_0801307219

—

No votes

Boulder 2208_0801307022

—

No votes

Boulder 22008_0801307220

—

No votes

Boulder 22108_0801307221

—

No votes

Boulder 22208_0801307222

—

No votes

Boulder 22308_0801307223

—

No votes

Boulder 22408_0801307224

—

No votes

Boulder 22508_0801307225

—

No votes

Boulder 22608_0801307226

—

No votes

Boulder 22708_0801307227

—

No votes

Boulder 22808_0801307228

—

No votes

Boulder 22908_0801307229

—

No votes

Boulder 2308_0801307023

—

No votes

Boulder 23008_0801307230

—

No votes

Boulder 23108_0801307231

—

No votes

Boulder 23208_0801307232

—

No votes

Boulder 23308_0801307233

—

No votes

Boulder 23408_0801307234

—

No votes

Boulder 2408_0801307024

—

No votes

Boulder 2508_0801307025

—

No votes

Boulder 2608_0801307026

—

No votes

Boulder 2708_0801307027

—

No votes

Boulder 2808_0801307028

—

No votes

Boulder 2908_0801307029

—

No votes

Boulder 308_0801307003

—

No votes

Boulder 3008_0801307030

—

No votes

Boulder 3108_0801307031

—

No votes

Boulder 3208_0801307032

—

No votes

Boulder 3308_0801307033

—

No votes

Boulder 3408_0801307034

—

No votes

Boulder 3508_0801307035

—

No votes

Boulder 3608_0801307036

—

No votes

Boulder 3708_0801307037

—

No votes

Boulder 3808_0801307038

—

No votes

Boulder 3908_0801307039

—

No votes

Boulder 408_0801307004

—

No votes

Boulder 4008_0801307040

—

No votes

Boulder 4108_0801307041

—

No votes

Boulder 4208_0801307042

—

No votes

Boulder 4308_0801307043

—

No votes

Boulder 4408_0801307044

—

No votes

Boulder 4508_0801307045

—

No votes

Boulder 4608_0801307046

—

No votes

Boulder 4708_0801307047

—

No votes

Boulder 4808_0801307048

—

No votes

Boulder 4908_0801307049

—

No votes

Boulder 508_0801307005

—

No votes

Boulder 5008_0801307050

—

No votes

Boulder 5108_0801307051

—

No votes

Boulder 5208_0801307052

—

No votes

Boulder 5308_0801307053

—

No votes

Boulder 5408_0801307054

—

No votes

Boulder 5508_0801307055

—

No votes

Boulder 5608_0801307056

—

No votes

Boulder 5708_0801307057

—

No votes

Boulder 5808_0801307058

—

No votes

Boulder 5908_0801307059

—

No votes

Boulder 608_0801307006

—

No votes

Boulder 6008_0801307060

—

No votes

Boulder 6108_0801307061

—

No votes

Boulder 6208_0801307062

—

No votes

Boulder 6308_0801307063

—

No votes

Boulder 6408_0801307064

—

No votes

Boulder 6508_0801307065

—

No votes

Boulder 6608_0801307066

—

No votes

Boulder 6708_0801307067

—

No votes

Boulder 6808_0801307068

—

No votes

Boulder 6908_0801307069

—

No votes

Boulder 708_0801307007

—

No votes

Boulder 7008_0801307070

—

No votes

Boulder 7108_0801307071

—

No votes

Boulder 7208_0801307072

—

No votes

Boulder 7308_0801307073

—

No votes

Boulder 7408_0801307074

—

No votes

Boulder 7508_0801307075

—

No votes

Boulder 7608_0801307076

—

No votes

Boulder 7708_0801307077

—

No votes

Boulder 7808_0801307078

—

No votes

Boulder 7908_0801307079

—

No votes

Boulder 808_0801307008

—

No votes

Boulder 8008_0801307080

—

No votes

Boulder 8108_0801307081

—

No votes

Boulder 8208_0801307082

—

No votes

Boulder 8308_0801307083

—

No votes

Boulder 8408_0801307084

—

No votes

Boulder 8508_0801307085

—

No votes

Boulder 8608_0801307086

—

No votes

Boulder 8708_0801307087

—

No votes

Boulder 8808_0801307088

—

No votes

Boulder 8908_0801307089

—

No votes

Boulder 908_0801307009

—

No votes

Boulder 9008_0801307090

—

No votes

Boulder 9108_0801307091

—

No votes

Boulder 9208_0801307092

—

No votes

Boulder 9308_0801307093

—

No votes

Boulder 9408_0801307094

—

No votes

Boulder 9508_0801307095

—

No votes

Boulder 9608_0801307096

—

No votes

Boulder 9708_0801307097

—

No votes

Boulder 9808_0801307098

—

No votes

Boulder 9908_0801307099

—

No votes

Presidential margin, 1880–2024

Democratic minus Republican, by election

Presidential margin over time
Year	Margin (D minus R)
1880	−21.5%
1884	−17.5%
1888	−15.5%
1892	−36.4%
1896	+69.5%
1900	+15.2%
1904	−14.3%
1908	+7.9%
1912	+17.7%
1916	+28.4%
1920	−20.2%
1924	−33.4%
1928	−36.3%
1932	+5.5%
1936	+14.5%
1940	−7.5%
1944	−14.8%
1948	−7.8%
1952	−31.6%
1956	−34.3%
1960	−23.3%
1964	+13.3%
1968	−21.4%
1972	−15.7%
1976	−11.7%
1980	−14.1%
1984	−11.7%
1988	+8.5%
1992	+24.5%
1996	+17.6%
2000	+13.7%
2004	+33.9%
2008	+46.1%
2012	+41.8%
2016	+48.3%
2020	+56.6%
2024	+55.7%

DemocraticRepublican

Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle; not shown when either cycle is estimated or under source review. vs U.S. · margin relative to the national result that year.

Year

Won

Democratic

Republican

Other

Margin

Swing

vs U.S.

Total

2024

76.5%Harris150,149

20.8%Trump40,758

0.9%Kennedy1,754

D+55.7

R+0.8

D+57.2

196,304

2020

77.2%Biden159,089

20.6%Trump42,501

1.2%Jorgensen2,539

D+56.6

D+8.2

D+52.1

206,111

2016

70.3%Clinton132,334

22.0%Trump41,396

4.3%Johnson8,034

D+48.3

D+6.5

D+46.2

188,145

2012

69.7%Obama125,091

27.8%Romney49,981

2.5%

D+41.8

R+4.3

D+38.0

179,499

2008

72.3%Obama124,159

26.1%McCain44,904

1.6%

D+46.1

D+12.2

D+38.9

171,763

2004

66.3%Kerry105,564

32.4%Bush51,586

1.3%

D+33.9

D+20.2

D+36.4

159,259

2000

50.1%Gore69,983

36.4%Bush50,873

11.8%Nader16,498

D+13.7

R+3.9

D+13.2

139,626

1996

52.2%Clinton63,316

34.5%Dole41,922

5.6%Perot6,840

D+17.6

R+6.8

D+9.1

121,354

1992

50.9%Clinton64,567

26.5%Bush33,553

21.9%Perot27,762

D+24.5

D+16.0

D+18.9

126,771

1988

53.4%Dukakis57,265

44.9%Bush48,174

1.7%

D+8.5

D+20.1

D+16.2

107,223

1984

43.4%Mondale42,195

55.1%Reagan53,535

1.5%

R+11.7

D+2.4

D+6.6

97,223

1980

32.6%Carter28,422

46.7%Reagan40,698

20.6%

R+14.1

R+2.4

R+4.4

87,069

1976

41.0%Carter33,284

52.7%Ford42,830

6.3%

R+11.7

D+4.0

R+13.8

81,253

1972

41.1%McGovern29,484

56.8%Nixon40,766

2.1%

R+15.7

D+5.6

D+7.4

71,770

1968

36.3%Humphrey17,422

57.7%Nixon27,671

6.0%

R+21.4

R+34.7

R+20.7

47,988

1964

56.4%Johnson22,737

43.1%Goldwater17,373

0.5%

D+13.3

D+36.6

R+9.3

40,330

1960

38.1%Kennedy12,276

61.5%Nixon19,791

0.4%

R+23.3

D+11.0

R+23.5

32,197

1956

32.5%Stevenson8,149

66.9%Eisenhower16,748

0.6%

R+34.3

R+2.7

R+18.9

25,039

1952

33.7%Stevenson7,767

65.3%Eisenhower15,069

1.1%

R+31.6

R+23.9

R+20.9

23,079

1948

44.3%Truman8,792

52.1%Dewey10,335

3.6%

R+7.8

D+7.1

R+12.3

19,839

1944

42.3%Roosevelt7,442

57.1%Dewey10,054

0.6%

R+14.8

R+7.3

R+22.3

17,610

1940

45.7%Roosevelt9,039

53.2%Willkie10,525

1.1%

R+7.5

R+22.1

R+17.5

19,776

1936

55.9%Roosevelt9,788

41.4%Landon7,244

2.7%

D+14.5

D+9.0

R+9.7

17,501

1932

50.4%Roosevelt8,412

44.8%Hoover7,487

4.8%

D+5.5

D+41.9

R+12.3

16,707

1928

31.1%Smith4,363

67.5%Hoover9,457

1.4%

R+36.3

R+2.9

R+18.9

14,015

1924

25.3%Davis3,273

58.8%Coolidge7,595

15.5%La Follette2,007

R+33.4

R+13.2

R+8.3

12,927

1920

37.7%Cox4,200

57.9%Harding6,456

4.4%

R+20.2

R+48.7

D+6.0

11,148

1916

61.5%Wilson7,419

33.0%Hughes3,986

5.5%

D+28.4

D+10.7

D+25.3

12,071

1912

40.8%Wilson4,330

23.0%Taft2,445

36.2%

D+17.7

D+9.9

R+1.8

10,620

1908

49.6%Bryan5,772

41.8%Taft4,856

8.6%

D+7.9

D+22.2

D+17.4

11,629

1904

39.6%Parker4,030

53.9%Roosevelt5,483

6.5%

R+14.3

R+29.5

D+5.4

10,172

1900

55.8%Bryan5,117

40.6%McKinley3,719

3.6%

D+15.2

R+54.3

D+22.8

9,168

1896

83.9%Bryan6,046

14.3%McKinley1,033

1.8%

D+69.5

D+106.0

D+75.6

7,209

1892

0.0%Cleveland0

36.4%Harrison1,338

63.6%

Weaver +27.2

R+20.9

R+38.1

3,674

1888

39.4%Cleveland1,176

55.0%Harrison1,639

5.6%

R+15.5

D+2.0

—

2,981

1884

34.1%Cleveland954

51.6%Blaine1,445

14.4%

R+17.5

D+4.0

—

2,801

1880

33.1%Hancock796

54.7%Garfield1,313

12.2%

R+21.5

—

2,402

1876

—

No data

—

Source · Akashic actual-race rollup from certified returns, House; geographic aggregation.

Year

Vote lead

Democratic

Republican

Total

2024

78.6%145,762

21.4%39,641

185,403

2020

76.7%150,049

23.3%45,689

195,738

2018

66.1%31,304

33.9%16,050

47,354

Sources · MIT Election Data and Science Lab (MEDSL); Amlani & Algara 2021 (Harvard Dataverse doi:10.7910/DVN/DGUMFI); upstream CQ Press + ICPSR · CC BY 4.0 / CC0 1.0.

Year

Vote lead

Democratic

Republican

Total

2022

77.5%128,227

20.5%33,858

165,434

2020Class II

75.2%John Hickenlooper154,552

23.0%Cory Gardner47,321

205,536

2016Class III

68.0%Michael Bennet126,334

24.6%Darryl Glenn45,755

185,820

2014Class II

68.6%Mark Udall97,612

27.4%Cory Gardner38,931

142,321

2010Class III

67.3%Michael Bennet84,264

28.3%Ken Buck35,450

125,265

2008Class II

70.5%Mark Udall117,042

26.1%Bob Schaffer43,375

166,096

2004Class III

67.6%Ken Salazar106,481

30.4%Pete Coors47,899

157,414

2002Class II

62.4%Tom Strickland66,407

34.7%Wayne Allard36,911

106,433

1998Class III

50.4%Dottie Lamm53,267

46.8%Ben Nighthorse Campbell49,457

105,771

1996Class II

58.4%Tom Strickland70,013

37.9%Wayne Allard45,419

119,790

1992Class III

61.9%Ben Nighthorse Campbell79,437

32.0%Terry Considine41,118

128,359

1990Class II

53.0%Josie Heath42,628

45.0%Hank Brown36,232

80,445

1986Class III

60.4%Timothy Wirth50,425

38.4%Ken Kramer32,078

83,526

1984Class II

43.1%Nancy Dick43,588

55.6%William L. Armstrong56,288

101,201

1980Class III

56.9%Gary Hart51,770

42.4%Mary E. Buchanan38,608

91,041

1978Class II

45.7%Floyd K. Haskell28,530

53.5%William L. Armstrong33,417

62,418

1974Class III

60.9%Gary Hart37,529

36.2%Peter H. Dominick22,299

61,623

1972Class II

52.7%Floyd K. Haskell36,529

45.6%Gordon Allott31,630

69,358

1968Class III

35.5%Stephen McNichols16,281

64.5%Peter H. Dominick29,564

45,845

1966Class II

37.2%Roy Romer11,788

62.7%Gordon Allott19,885

31,726

1962Class III

40.4%John Carroll11,320

58.9%Peter H. Dominick16,503

27,995

1960Class II

39.6%Robert L. Knous12,339

60.1%Gordon Allott18,742

31,186

1956Class III

43.8%John A. Carroll10,403

56.2%Dan Thornton13,341

23,744

1954Class II

42.8%John A. Carroll7,548

57.2%Gordon Allott10,084

17,632

1950Class III

43.9%John A. Carroll7,694

56.1%Eugene D. Millikin9,851

17,545

1948Class II

61.9%Edwin C. Johnson12,265

36.2%Will F. Nicholson7,178

19,824

1942Class II

50.8%Edwin C. Johnson6,474

48.4%Ralph L. Carr6,170

12,735

1938Class III

54.5%Alva B. Adams8,718

43.7%Archibald A. Lee6,996

16,006

1936Class II

60.6%Edwin C. Johnson9,740

37.7%Raymond L. Sauter6,062

16,066

1932Class III

48.4%Alva B. Adams6,816

48.5%Karl C. Schuyler6,833

14,079

1930Class II

60.2%Edward P. Costigan6,960

38.6%George H. Shaw4,457

11,556

1926Class III

47.4%William E. Sweet5,355

49.3%Charles W. Waterman5,577

11,309

1924Class II

41.8%Alva B. Adams5,224

53.1%Lawrence C. Phipps6,631

12,493

1920Class III

38.5%Tully Scot4,129

55.6%Samuel D. Nicholson5,961

10,720

1918Class II

51.6%John Shafroth4,109

46.2%Lawrence C. Phipps3,681

7,966

1914Class III

41.0%Charles S. Thomas4,024

44.0%Hubert Work4,315

9,813

1912Class II

45.3%John F. Shafroth4,415

28.3%Clyde Dawson2,756

9,748

Source · Amlani & Algara 2021 (Harvard Dataverse doi:10.7910/DVN/DGUMFI); upstream CQ Press + ICPSR · CC0 1.0.

Year

Vote lead

Democratic

Republican

Total

1942Special · Class III

38.1%James A. Marsh4,768

60.0%Eugene D. Millikin7,521

12,530

1924Special · Class III

45.1%Morrison Shafroth5,590

49.8%Rice W. Means6,163

12,382

1912Special · Class III

44.0%Charles Thomas4,264

28.5%Hubert Work2,766

9,700

Sources · MIT Election Data and Science Lab (MEDSL); Amlani & Algara 2021 (Harvard Dataverse doi:10.7910/DVN/DGUMFI); upstream CQ Press + ICPSR · CC BY 4.0 / CC0 1.0.

Year

Vote lead

Democratic

Republican

Total

2022

80.1%Jared Polis132,173

18.4%Heidi Ganahl30,454

165,077

2018

75.5%Jared Polis / Dianne Primavera133,116

21.8%Walker Stapleton / Lang Sias38,423

176,262

2014

68.1%John Hickenlooper96,565

26.0%Bob Beauprez36,868

141,760

2010

70.0%John Hickenlooper87,878

5.4%Dan Maes6,772

125,486

2006

71.2%Bill Ritter84,235

26.2%Bob Beauprez30,974

118,331

2002

47.8%Rollie Heath50,829

44.1%Bill Owens46,964

106,436

1998

60.0%Gail Schoettler63,185

37.5%Bill Owens39,487

105,353

1994

67.4%Roy Romer60,182

26.4%Bruce D. Benson23,529

89,272

1990

71.7%Roy Romer56,126

25.5%John Andrews19,986

78,317

1986

64.3%Roy Romer53,291

35.2%Ted L. Strickland29,143

82,862

1982

71.4%Richard Lamm52,672

25.8%John Fuhr19,004

73,766

1978

64.5%Richard Lamm39,851

33.1%Ted L. Strickland20,467

61,825

Frequently asked questions

How did Boulder County, Colorado vote in 2024?

In 2024, Boulder County, Colorado voted Democratic by 55.7 points (D+55.7), carried by the Democratic candidate. Out of 196,304 votes cast, 150,149 went Democratic and 40,758 went Republican.

When did Boulder County, Colorado last vote Republican?

The most recent presidential election in which Boulder County, Colorado voted Republican was 1984.

How many people live in Boulder County, Colorado?

Boulder County, Colorado has a population of 328,961 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.

What is the median household income in Boulder County, Colorado?

Median household income in Boulder County, Colorado is $103,994 — above the national median of $80,734. The Colorado state median is $95,470.

What is the political history of Boulder County, Colorado?

Akashic tracks 38 presidential elections in Boulder County, Colorado from 1876 to 2024. Of those, 18 went Democratic and 18 went Republican.