Akashic

county

San Juan County, WA

Office (updates table and map)

President margin by year

Place winner margin

1892–2024 · D minus R

Full record · 1892 → 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

English19.4%12.1%9.5%

German17.3%14.5%12.5%

Irish13.3%9.8%9.4%

Scottish5.8%2.6%1.3%

Norwegian5.1%4.0%—

Swedish3.7%1.8%—

Italian3.6%3.1%4.8%

French2.9%—1.6%

Mexican5.0%10.8%11.3%

Spanish0.6%0.3%—

Cuban0.2%—0.7%

Colombian0.2%0.2%0.4%

Chinese0.5%2.2%1.3%

Korean0.3%0.9%0.4%

Filipino0.2%1.5%0.9%

Samoan0.1%0.2%—

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	San Juan County	Washington	United States
Median age	57	38.5	39.1
Age 18–24	4.4%	8.5%	9.2%
Age 65 and older	36.1%	16.7%	17.2%

Household economy

Measure	San Juan County	Washington	United States
Median household income	$84,800	$98,141	$84,427
Poverty rate	11.3%	9.9%	12.5%
Bachelor's degree or higher (25+)	53.9%	39.3%	35.6%

Languages at home

Measure	San Juan County	Washington	United States
Speaks a non-English language at home	6.8%	21.5%	22.3%
Spanish	3.5%	9.1%	13.6%

Religious landscape

Measure	San Juan County	Washington	United States
Catholic	6.9%	10.7%	18.6%
Evangelical Protestant	5.0%	20.5%	16.5%
Unclaimed / not counted	76.3%	58.8%	51.5%
Latter-day Saints	5.9%	3.6%	2.0%

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 83.4% of 15,596 citizens 18+

HarrisDemocratic73.3%9,539TrumpRepublican22.2%2,890KennedyIndependent1.5%196

D+51.1

Lead: 6,649
Total: 13,006
vs nation: D+52.6
Turnout: 83.4%

BidenDemocratic73.7%9,725TrumpRepublican23.2%3,057JorgensenLibertarian1.6%210

D+50.5

Lead: 6,668
Total: 13,197
vs nation: D+46.1
Turnout: 94.5%

ClintonDemocratic64.4%7,172TrumpRepublican24.1%2,688SteinGreen4.2%467

D+40.3

Lead: 4,484
Total: 11,134
vs nation: D+38.2
Turnout: 84.8%

ObamaDemocratic66.6%7,125RomneyRepublican29.1%3,111HonkalaGreen1.6%175

D+37.5

Lead: 4,014
Total: 10,692
vs nation: D+33.7
Turnout: —

ObamaDemocratic70.0%7,374McCainRepublican28.1%2,958OtherAll other candidates1.9%199

D+41.9

Lead: 4,416
Total: 10,531
vs nation: D+34.7
Turnout: —

KerryDemocratic65.2%6,589BushRepublican32.6%3,290OtherAll other candidates2.2%225

D+32.7

Lead: 3,299
Total: 10,104
vs nation: D+35.1
Turnout: —

GoreDemocratic52.5%4,426BushRepublican35.7%3,005NaderGreen10.4%875

D+16.9

Lead: 1,421
Total: 8,424
vs nation: D+16.3
Turnout: —

ClintonDemocratic49.8%3,663DoleRepublican34.3%2,523PerotReform6.9%508

D+15.5

Lead: 1,140
Total: 7,354
vs nation: D+7.0
Turnout: —

Key facts

2024 presidential margin: D+51.1MIT Election Lab
Population: 18,4782024 5-year
Median household income: $84,8002024 5-year
White (non-Hispanic): 85.2%2024 5-year
Black: 0.2%2024 5-year
Hispanic / Latino: 7.6%2024 5-year
Peak Democratic margin: D+51.1 in 2024MIT Election Lab
Peak Republican margin: R+59.0 in 1924MIT Election Lab
Most similar: Jefferson County, WA · twin score 98.1

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: 83.4%13,006 participants ÷ 15,596 CVAP
2020→2022 drop-off: +18.4 ptsVolatile
Drop-off versus state: -2.7 ptsPositive means a larger decline than the statewide pattern
Mechanical 2026 scenario: 65.0%–72.7%Recent-cycle and two-cycle persistence scenarios; not a forecast

Election	Participants	CVAP	Turnout	Quality
2016 · Presidential	11,294	13,311	84.8%	A/A
2018 · Midterm	11,226	13,698	82.0%	A/A
2020 · Presidential	13,289	14,068	94.5%	A/A
2022 · Midterm	11,458	15,068	76.0%	A/A
2024 · Presidential	13,006	15,596	83.4%	C/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 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 306/183.
2024: numerator source 159, denominator source 157; top ticket votes; canonical-complete-contest-floor-v1; allocation share 0.0%; series 156/228.

Precinct data

Results by precinct

40 precincts · 13,006 votes

Election

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

San Juan County precinct-level presidential election results for 2024

Precinct -LOPEZ NORTHLOPEZ NORTH	697	213	43	953	73.1%	22.4%	D+50.8
Precinct -SAN JUAN CENTRALSAN JUAN CENTRAL	650	225	44	919	70.7%	24.5%	D+46.2
Precinct -FRIDAY HARBOR NORTHFRIDAY HARBOR NORTH	678	211	29	918	73.9%	23.0%	D+50.9
Precinct -ORCAS EASTORCAS EAST	698	163	41	902	77.4%	18.1%	D+59.3
Precinct -LOPEZ SOUTHLOPEZ SOUTH	677	166	48	891	76.0%	18.6%	D+57.4
Precinct -SAN JUAN WESTSAN JUAN WEST	580	204	22	806	72.0%	25.3%	D+46.7
Precinct -SAN JUAN SOUTH WESTSAN JUAN SOUTH WEST	593	174	18	785	75.5%	22.2%	D+53.4
Precinct -EASTSOUND NORTHEASTSOUND NORTH	499	155	48	702	71.1%	22.1%	D+49.0
Precinct -SAN JUAN NORTHSAN JUAN NORTH	435	210	36	681	63.9%	30.8%	D+33.0
Precinct -FRIDAY HARBOR SOUTHFRIDAY HARBOR SOUTH	482	165	32	679	71.0%	24.3%	D+46.7
Precinct -SAN JUAN EASTSAN JUAN EAST	498	146	22	666	74.8%	21.9%	D+52.9
Precinct -ORCAS WESTORCAS WEST	436	121	28	585	74.5%	20.7%	D+53.8
Precinct -ORCAS CENTRALORCAS CENTRAL	399	120	37	556	71.8%	21.6%	D+50.2
Precinct -SAN JUAN SOUTH EASTSAN JUAN SOUTH EAST	380	132	17	529	71.8%	25.0%	D+46.9
Precinct -EASTSOUNDEASTSOUND	403	105	12	520	77.5%	20.2%	D+57.3
Precinct -ORCAS SOUTHORCAS SOUTH	356	80	22	458	77.7%	17.5%	D+60.3
Precinct -ORCAS NORTHORCAS NORTH	345	75	29	449	76.8%	16.7%	D+60.1
Precinct -TURN POINTTURN POINT	224	96	10	330	67.9%	29.1%	D+38.8
Precinct -LOPEZ NORTHWESTLOPEZ NORTHWEST	172	31	15	218	78.9%	14.2%	D+64.7
Precinct -SHAWSHAW	121	41	8	170	71.2%	24.1%	D+47.1
Precinct -DECATUR AND OUTER ISDECATUR AND OUTER IS	93	35	1	129	72.1%	27.1%	D+45.0
Precinct -WALDRON & OUTER ISWALDRON & OUTER IS	91	6	11	108	84.3%	5.6%	D+78.7
Precinct -BLAKELY & OUTER ISBLAKELY & OUTER IS	32	16	4	52	61.5%	30.8%	D+30.8
Blakely/Decatur Voting District53_5305555001	0	0	0	0	—	—	No votes
Friday Harbor 1 Voting District53_5305555101	0	0	0	0	—	—	No votes
Friday Harbor 2 Voting District53_5305555102	0	0	0	0	—	—	No votes
Lopez 1 Voting District53_5305555006	0	0	0	0	—	—	No votes
Lopez 2 Voting District53_5305555007	0	0	0	0	—	—	No votes
Orcas 1 Voting District53_5305555002	0	0	0	0	—	—	No votes
Orcas 2 Voting District53_5305555004	0	0	0	0	—	—	No votes
Orcas 3 Voting District53_5305555005	0	0	0	0	—	—	No votes
Orcas 4 Voting District53_5305555003	0	0	0	0	—	—	No votes
San Juan 1 Voting District53_5305555010	0	0	0	0	—	—	No votes
San Juan 2 Voting District53_5305555011	0	0	0	0	—	—	No votes
San Juan 3 Voting District53_5305555012	0	0	0	0	—	—	No votes
San Juan 4 Voting District53_5305555013	0	0	0	0	—	—	No votes
San Juan 5 Voting District53_5305555014	0	0	0	0	—	—	No votes
Shaw Voting District53_5305555008	0	0	0	0	—	—	No votes
Stuart Voting District53_5305555009	0	0	0	0	—	—	No votes
Waldron Voting District53_5305555015	0	0	0	0	—	—	No votes

presidential history

Presidential margin, 1892–2024

Democratic minus Republican, by election

Presidential margin over time
Year	Margin (D minus R)
1892	−19.2%
1896	−17.0%
1900	−26.3%
1904	−57.3%
1908	−45.7%
1912	−2.4%
1916	+5.6%
1920	−51.0%
1924	−59.0%
1928	−33.9%
1932	+11.9%
1936	+5.3%
1940	+3.1%
1944	−4.4%
1948	−15.6%
1952	−29.1%
1956	−30.8%
1960	−28.0%
1964	+3.8%
1968	−24.4%
1972	−31.5%
1976	−14.3%
1980	−13.9%
1984	−7.0%
1988	+6.0%
1992	+20.4%
1996	+15.5%
2000	+16.9%
2004	+32.7%
2008	+41.9%
2012	+37.5%
2016	+40.3%
2020	+50.5%
2024	+51.1%

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	73.3%Harris9,539	22.2%Trump2,890	1.5%Kennedy196 +8	D+51.1	D+0.6	D+52.6	13,006
All 11 candidates in 2024 · 9 minor / independent Kamala D HarrisDemocratic73.3%9,539 Donald J TrumpRepublican22.2%2,890 Robert F KennedyIndependent1.5%196 Jill SteinIndependent1.4%182 OtherAll other candidates0.5%67 Chase OliverLibertarian0.4%55 Cornel WestIndependent0.3%33 Claudia De La CruzIndependent0.2%32 Shiva AyyaduraiIndependent0.1%8 Joseph KishoreIndependent0.0%3 Rachele FruitIndependent0.0%1
2020	D	73.7%Biden9,725	23.2%Trump3,057	1.6%Jorgensen210	D+50.5	D+10.3	D+46.1	13,197
2016	D	64.4%Clinton7,172	24.1%Trump2,688	4.2%Stein467	D+40.3	D+2.7	D+38.2	11,134
2012	D	66.6%Obama7,125	29.1%Romney3,111	1.6%Honkala175	D+37.5	R+4.4	D+33.7	10,692
2008	D	70.0%Obama7,374	28.1%McCain2,958	1.9%	D+41.9	D+9.3	D+34.7	10,531
2004	D	65.2%Kerry6,589	32.6%Bush3,290	2.2%	D+32.7	D+15.8	D+35.1	10,104
2000	D	52.5%Gore4,426	35.7%Bush3,005	10.4%Nader875	D+16.9	D+1.4	D+16.3	8,424
1996	D	49.8%Clinton3,663	34.3%Dole2,523	6.9%Perot508	D+15.5	R+4.9	D+7.0	7,354
1992	D	47.1%Clinton3,353	26.7%Bush1,901	25.0%Perot1,776	D+20.4	D+14.4	D+14.8	7,117
1988	D	51.7%Dukakis3,008	45.8%Bush2,660	2.5%	D+6.0	D+13.0	D+13.7	5,814
1984	R	45.5%Mondale2,514	52.5%Reagan2,900	2.0%	R+7.0	D+6.9	D+11.2	5,526
1980	R	33.1%Carter1,666	47.0%Reagan2,363	19.9%	R+13.9	D+0.4	R+4.1	5,031
1976	R	39.4%Carter1,467	53.7%Ford1,998	6.9%	R+14.3	D+17.2	R+16.3	3,722
1972	R	32.4%McGovern906	63.9%Nixon1,786	3.7%	R+31.5	R+7.1	R+8.3	2,795
1968	R	34.9%Humphrey685	59.3%Nixon1,164	5.8%	R+24.4	R+28.2	R+23.7	1,963
1964	D	51.8%Johnson906	47.9%Goldwater839	0.3%	D+3.8	D+31.9	R+18.8	1,750
1960	R	35.9%Kennedy624	63.9%Nixon1,112	0.2%	R+28.0	D+2.7	R+28.2	1,740
1956	R	34.5%Stevenson584	65.3%Eisenhower1,105	0.2%	R+30.8	R+1.7	R+15.4	1,693
1952	R	35.1%Stevenson619	64.2%Eisenhower1,133	0.8%	R+29.1	R+13.5	R+18.3	1,766
1948	R	40.4%Truman636	55.9%Dewey881	3.7%	R+15.6	R+11.2	R+20.0	1,575
1944	R	47.6%Roosevelt644	51.9%Dewey703	0.5%	R+4.4	R+7.5	R+11.9	1,354
1940	D	51.3%Roosevelt860	48.2%Willkie808	0.4%	D+3.1	R+2.2	R+6.8	1,675
1936	D	48.6%Roosevelt775	43.3%Landon690	8.2%	D+5.3	R+6.6	R+18.9	1,595
1932	D	52.4%Roosevelt786	40.4%Hoover607	7.2%	D+11.9	D+45.9	R+5.9	1,501
1928	R	32.8%Smith400	66.7%Hoover814	0.5%	R+33.9	D+25.0	R+16.5	1,220
1924	R	7.7%Davis86	66.7%Coolidge744	25.4%La Follette284	R+59.0	R+8.0	R+33.8	1,116
1920	R	15.7%Cox196	66.6%Harding833	17.7%	R+51.0	R+56.6	R+24.8	1,250
1916	D	48.0%Wilson669	42.4%Hughes591	9.7%	D+5.6	D+8.0	D+2.4	1,395
1912	O	25.1%Wilson311	27.5%Taft341	47.4%	Roosevelt +19.9	D+43.3	R+22.0	1,239
1908	R	20.2%Bryan178	65.9%Taft581	13.8%	R+45.7	D+11.5	R+36.2	881
1904	R	14.7%Parker113	71.9%Roosevelt554	13.4%	R+57.3	R+31.0	R+37.6	770
1900	R	35.2%Bryan245	61.5%McKinley428	3.3%	R+26.3	R+9.3	R+18.7	696
1896	R	41.3%Bryan291	58.3%McKinley411	0.4%	R+17.0	D+2.2	R+10.9	705
1892	R	35.6%Cleveland226	54.9%Harrison348	9.5%	R+19.2	—	R+20.9	634
1888	—	—	—	—	No data	—	—	—
1884	—	—	—	—	No data	—	—	—
1880	—	—	—	—	No data	—	—	—
1876	—	—	—	—	No data	—	—	—

Federal and statewide elections · 3 House · 38 Senate · 1 Senate special · 13 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	77.4%9,726	22.6%2,840	12,566
2020	D	74.8%9,600	25.2%3,226	12,826
2018	D	100.0%8,130	0.0%0	8,130

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
2024	D	74.7%9,466	25.3%3,214	12,680
2022	D	73.0%8,254	27.0%3,055	11,309
2018Class I	D	72.6%Maria Cantwell8,016	27.4%Susan Hutchison3,026	11,042
2016Class III	D	71.6%Patty Murray7,789	28.4%Chris Vance3,091	10,880
2012Class I	D	70.4%Maria Cantwell7,351	29.6%Michael Baumgartner3,095	10,446
2010Class III	D	65.2%Patty Murray5,994	34.8%Dino Rossi3,194	9,188
2006Class I	D	64.7%Maria Cantwell5,323	30.2%Mike McGavick2,483	8,228
2004Class III	D	64.3%Patty Murray6,376	31.9%George Nethercutt3,164	9,919
2000Class I	D	56.9%Maria Cantwell4,729	40.5%Slade Gorton3,362	8,310
1998Class III	D	64.2%Patty Murray4,471	35.8%Linda Smith2,494	6,965
1994Class I	D	53.7%Ron Sims3,380	46.3%Slade Gorton2,918	6,298
1992Class III	D	58.6%Patty Murray4,008	41.4%Rod Chandler2,827	6,835
1988Class I	D	51.1%Mike Lowry2,932	48.9%Slade Gorton2,811	5,743
1986Class III	R	46.8%Brock Adams2,157	52.4%Slade Gorton2,417	4,612
1982Class I	D	47.8%Scoop Jackson1,977	37.0%Doug Jewett1,531	4,140
1980Class III	R	39.5%Warren Magnuson1,903	60.5%Slade Gorton2,916	4,819
1976Class I	D	54.2%Scoop Jackson1,764	41.9%George M. Brown1,364	3,255
1974Class III	D	51.6%Warren Magnuson1,374	45.9%Jack Metcalf1,223	2,662
1970Class I	D	69.9%Scoop Jackson1,364	29.3%Charles W. Elicker571	1,952
1968Class III	R	49.4%Warren Magnuson922	50.2%Jack Metcalf938	1,868
1964Class I	D	59.0%Scoop Jackson990	41.0%Lloyd J. Andrews689	1,679
1962Class III	R	41.9%Warren Magnuson612	57.6%Richard Christensen841	1,460
1958Class I	D	62.9%Scoop Jackson868	36.6%William Bantz505	1,379
1956Class III	D	50.5%Warren Magnuson836	49.5%Arthur B. Langlie821	1,657
1952Class I	D	50.7%Scoop Jackson890	48.8%Harry P. Cain856	1,755
1950Class III	D	51.5%Warren Magnuson755	48.1%Walter Williams706	1,467
1946Class I	R	38.4%Hugh B. Mitchell460	61.3%Harry P. Cain735	1,199
1944Class III	R	46.8%Warren Magnuson596	53.2%Harry P. Cain677	1,273
1940Class I	D	50.1%Monrad C. Wallgren796	49.9%Stephen Chadwick792	1,588
1938Class III	R	46.4%Homer T. Bone649	53.4%Ewing D. Colvin746	1,398
1934Class I	D	54.0%Lewis Schwellenbach770	44.8%Reno Odlin639	1,427
1932Class III	D	55.4%Homer T. Bone796	39.0%Wesley L. Jones561	1,437
1928Class I	R	47.7%Clarence C. Dill571	52.3%Kenneth Mackintosh625	1,196
1926Class III	R	32.7%A. Scott Bullitt326	66.4%Wesley L. Jones663	998
1922Class I	R	41.0%Clarence C. Dill462	51.9%Miles Poindexter585	1,128
1920Class III	R	15.0%George Cotterill176	66.3%Wesley L. Jones780	1,177
1916Class I	R	34.1%George Turner456	56.5%Miles Poindexter755	1,337
1914Class III	R	19.2%W.W. Black224	40.1%Wesley L. Jones467	1,166

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
1983Special · Class I	R	44.4%Mike Lowry1,749	55.6%Daniel J. Evans2,188	3,937

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
2024	D	73.3%Bob Ferguson9,348	26.7%Dave Reichert3,400	12,748
2020	D	73.5%Jay Inslee9,621	26.5%Loren Culp3,465	13,086
2016	D	68.9%Jay Inslee7,509	30.8%Bill Bryant3,356	10,900
2012	D	64.8%Jay Inslee6,763	35.2%Rob McKenna3,671	10,434
2008	D	67.7%Christine Gregoire7,044	32.3%Dino Rossi3,356	10,400
2004	D	59.6%Christine Gregoire5,872	37.1%Dino Rossi3,660	9,852
2000	D	64.8%Gary Locke5,385	32.3%John Carlson2,684	8,306
1996	D	63.2%Gary Locke4,567	36.8%Ellen Craswell2,660	7,227
1992	D	54.6%Mike Lowry3,758	45.4%Ken Eikenberry3,123	6,881
1988	D	65.9%Booth Gardner3,814	34.1%Bob Williams1,976	5,790
1984	R	48.5%Booth Gardner2,634	51.5%John Spellman2,799	5,433
1980	R	47.2%Jim McDermott2,315	52.8%John Spellman2,587	4,902
1976	R	45.2%Dixy Lee Ray1,658	52.0%John Spellman1,907	3,667

voter registration

Registered voters

Total registered voters, over time

Registered voters

Voter registration in San Juan County, WA
Year	Total registered
2016	13,573
2018	14,094
2020	15,387
2022	15,713
2024	16,197

domestic migration

Who moves in and out

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

+70 net domestic migration · 2025

20112025

Net +3,044 over 2011–2025 · gain loss

Arrivals reported $122,903 in average income, against $101,069 for residents who stayed — 22% higher. (IRS SOI, 2022–23)

The places arrivals came from lean D+37.5 on average — 14 points more Republican-leaning than San Juan County, WA itself (D+51.1).

Where arrivals came from lean of each source

King County, WA117D+51.3
Whatcom County, WA46D+24.7
Snohomish County, WA25D+18.8
Skagit County, WA20D+8.8

Where departures went households, 2022–23

King County, WA70
Whatcom County, WA48
Skagit County, WA41
Snohomish County, WA29

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 San Juan County, WA in San Juan County, WA: net domestic migration by year
Year	Net domestic migration
2011	+83
2012	+54
2013	+105
2014	+122
2015	+224
2016	+153
2017	+452
2018	+418
2019	+474
2021	+894
2022	+69
2023	−93
2024	+19
2025	+70

San Juan County, reachable only by ferry or small plane, combines a tiny year-round population with a heavily educated, affluent resident base that has produced some of the most lopsided presidential margins in the Pacific Northwest.

Across the recorded series it reached a Democratic high of 51.1 points in 2024 and a Republican high of 59.0 points in 1924. Between 2020 and 2024 the county moved 0.6 points toward the Democratic candidate; the 2024 margin was 51.1 points.

A population of 18,478, a 85% non-Hispanic-white share, and a median household income of $84,800 describe the county. The county's voting pattern over the last decade is most similar to that of Jefferson County and Pitkin County.

Political twins — counties

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

Jefferson County

Washington

98.1twin score

2016–2024 trajectory12-yr trend≠ French ancestry

Pitkin County

Colorado

94.7twin score

2004–2024 trajectory≠ median age

Clatsop County

Oregon

93.3twin score

2000–2012 trajectory≠ college share

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.

San Juan County, Washington. Akashic. https://akashic.app/county/53055/. Accessed May 20, 2026. License: CC BY 4.0.

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Cities & towns in San Juan County

Friday Harbor

D+49

2.7K residents

Washington at the ballot boxAll elections →

Presidentcounty detail2024 US Senatestatewide2024 Governorstate + county2024 US Houseall districts2024

Frequently asked questions

How did San Juan County, Washington vote in 2024?

In 2024, San Juan County, Washington voted Democratic by 51.1 points (D+51.1), carried by the Democratic candidate. Out of 13,006 votes cast, 9,539 went Democratic and 2,890 went Republican.

When did San Juan County, Washington last vote Republican?

The most recent presidential election in which San Juan County, Washington voted Republican was 1984.

How many people live in San Juan County, Washington?

San Juan County, Washington has a population of 18,478 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.

What is the median household income in San Juan County, Washington?

Median household income in San Juan County, Washington is $84,800 — above the national median of $80,734. The Washington state median is $98,141.

What is the political history of San Juan County, Washington?

Akashic tracks 38 presidential elections in San Juan County, Washington from 1876 to 2024. Of those, 15 went Democratic and 18 went Republican.

Measure

San Juan County

Washington

United States

Median age

38.5

39.1

Age 18–24

4.4%

8.5%

9.2%

Age 65 and older

36.1%

16.7%

17.2%

Measure

San Juan County

Washington

United States

Median household income

$84,800

$98,141

$84,427

Poverty rate

11.3%

9.9%

12.5%

Bachelor's degree or higher (25+)

53.9%

39.3%

35.6%

Measure

San Juan County

Washington

United States

Speaks a non-English language at home

6.8%

21.5%

22.3%

Spanish

3.5%

9.1%

13.6%

Measure

San Juan County

Washington

United States

Catholic

6.9%

10.7%

18.6%

Evangelical Protestant

5.0%

20.5%

16.5%

Unclaimed / not counted

76.3%

58.8%

51.5%

Latter-day Saints

5.9%

3.6%

2.0%

Key facts

2024 presidential margin

D+51.1MIT Election Lab

Population

18,4782024 5-year

Median household income

$84,8002024 5-year

White (non-Hispanic)

85.2%2024 5-year

Black

0.2%2024 5-year

Hispanic / Latino

7.6%2024 5-year

Peak Democratic margin

D+51.1 in 2024MIT Election Lab

Peak Republican margin

R+59.0 in 1924MIT Election Lab

Most similar

Jefferson County, WA · twin score 98.1

Election

Participants

CVAP

Turnout

Quality

2016 · Presidential

11,294

13,311

84.8%

A/A

2018 · Midterm

11,226

13,698

82.0%

A/A

2020 · Presidential

13,289

14,068

94.5%

A/A

2022 · Midterm

11,458

15,068

76.0%

A/A

2024 · Presidential

13,006

15,596

83.4%

C/A

San Juan County precinct-level presidential election results for 2024

Precinct -LOPEZ NORTHLOPEZ NORTH

697

213

953

73.1%

22.4%

D+50.8

Precinct -SAN JUAN CENTRALSAN JUAN CENTRAL

650

225

919

70.7%

24.5%

D+46.2

Precinct -FRIDAY HARBOR NORTHFRIDAY HARBOR NORTH

678

211

918

73.9%

23.0%

D+50.9

Precinct -ORCAS EASTORCAS EAST

698

163

902

77.4%

18.1%

D+59.3

Precinct -LOPEZ SOUTHLOPEZ SOUTH

677

166

891

76.0%

18.6%

D+57.4

Precinct -SAN JUAN WESTSAN JUAN WEST

580

204

806

72.0%

25.3%

D+46.7

Precinct -SAN JUAN SOUTH WESTSAN JUAN SOUTH WEST

593

174

785

75.5%

22.2%

D+53.4

Precinct -EASTSOUND NORTHEASTSOUND NORTH

499

155

702

71.1%

22.1%

D+49.0

Precinct -SAN JUAN NORTHSAN JUAN NORTH

435

210

681

63.9%

30.8%

D+33.0

Precinct -FRIDAY HARBOR SOUTHFRIDAY HARBOR SOUTH

482

165

679

71.0%

24.3%

D+46.7

Precinct -SAN JUAN EASTSAN JUAN EAST

498

146

666

74.8%

21.9%

D+52.9

Precinct -ORCAS WESTORCAS WEST

436

121

585

74.5%

20.7%

D+53.8

Precinct -ORCAS CENTRALORCAS CENTRAL

399

120

556

71.8%

21.6%

D+50.2

Precinct -SAN JUAN SOUTH EASTSAN JUAN SOUTH EAST

380

132

529

71.8%

25.0%

D+46.9

Precinct -EASTSOUNDEASTSOUND

403

105

520

77.5%

20.2%

D+57.3

Precinct -ORCAS SOUTHORCAS SOUTH

356

458

77.7%

17.5%

D+60.3

Precinct -ORCAS NORTHORCAS NORTH

345

449

76.8%

16.7%

D+60.1

Precinct -TURN POINTTURN POINT

224

330

67.9%

29.1%

D+38.8

Precinct -LOPEZ NORTHWESTLOPEZ NORTHWEST

172

218

78.9%

14.2%

D+64.7

Precinct -SHAWSHAW

121

170

71.2%

24.1%

D+47.1

Precinct -DECATUR AND OUTER ISDECATUR AND OUTER IS

129

72.1%

27.1%

D+45.0

Precinct -WALDRON & OUTER ISWALDRON & OUTER IS

108

84.3%

5.6%

D+78.7

Precinct -BLAKELY & OUTER ISBLAKELY & OUTER IS

61.5%

30.8%

D+30.8

Blakely/Decatur Voting District53_5305555001

—

No votes

Friday Harbor 1 Voting District53_5305555101

—

No votes

Friday Harbor 2 Voting District53_5305555102

—

No votes

Lopez 1 Voting District53_5305555006

—

No votes

Lopez 2 Voting District53_5305555007

—

No votes

Orcas 1 Voting District53_5305555002

—

No votes

Orcas 2 Voting District53_5305555004

—

No votes

Orcas 3 Voting District53_5305555005

—

No votes

Orcas 4 Voting District53_5305555003

—

No votes

San Juan 1 Voting District53_5305555010

—

No votes

San Juan 2 Voting District53_5305555011

—

No votes

San Juan 3 Voting District53_5305555012

—

No votes

San Juan 4 Voting District53_5305555013

—

No votes

San Juan 5 Voting District53_5305555014

—

No votes

Shaw Voting District53_5305555008

—

No votes

Stuart Voting District53_5305555009

—

No votes

Waldron Voting District53_5305555015

—

No votes

Presidential margin, 1892–2024

Democratic minus Republican, by election

Presidential margin over time
Year	Margin (D minus R)
1892	−19.2%
1896	−17.0%
1900	−26.3%
1904	−57.3%
1908	−45.7%
1912	−2.4%
1916	+5.6%
1920	−51.0%
1924	−59.0%
1928	−33.9%
1932	+11.9%
1936	+5.3%
1940	+3.1%
1944	−4.4%
1948	−15.6%
1952	−29.1%
1956	−30.8%
1960	−28.0%
1964	+3.8%
1968	−24.4%
1972	−31.5%
1976	−14.3%
1980	−13.9%
1984	−7.0%
1988	+6.0%
1992	+20.4%
1996	+15.5%
2000	+16.9%
2004	+32.7%
2008	+41.9%
2012	+37.5%
2016	+40.3%
2020	+50.5%
2024	+51.1%

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

73.3%Harris9,539

22.2%Trump2,890

1.5%Kennedy196 +8

D+51.1

D+0.6

D+52.6

13,006

All 11 candidates in 2024 · 9 minor / independent

Kamala D HarrisDemocratic73.3%9,539
Donald J TrumpRepublican22.2%2,890
Robert F KennedyIndependent1.5%196
Jill SteinIndependent1.4%182
OtherAll other candidates0.5%67
Chase OliverLibertarian0.4%55
Cornel WestIndependent0.3%33
Claudia De La CruzIndependent0.2%32
Shiva AyyaduraiIndependent0.1%8
Joseph KishoreIndependent0.0%3
Rachele FruitIndependent0.0%1

2020

73.7%Biden9,725

23.2%Trump3,057

1.6%Jorgensen210

D+50.5

D+10.3

D+46.1

13,197

2016

64.4%Clinton7,172

24.1%Trump2,688

4.2%Stein467

D+40.3

D+2.7

D+38.2

11,134

2012

66.6%Obama7,125

29.1%Romney3,111

1.6%Honkala175

D+37.5

R+4.4

D+33.7

10,692

2008

70.0%Obama7,374

28.1%McCain2,958

1.9%

D+41.9

D+9.3

D+34.7

10,531

2004

65.2%Kerry6,589

32.6%Bush3,290

2.2%

D+32.7

D+15.8

D+35.1

10,104

2000

52.5%Gore4,426

35.7%Bush3,005

10.4%Nader875

D+16.9

D+1.4

D+16.3

8,424

1996

49.8%Clinton3,663

34.3%Dole2,523

6.9%Perot508

D+15.5

R+4.9

D+7.0

7,354

1992

47.1%Clinton3,353

26.7%Bush1,901

25.0%Perot1,776

D+20.4

D+14.4

D+14.8

7,117

1988

51.7%Dukakis3,008

45.8%Bush2,660

2.5%

D+6.0

D+13.0

D+13.7

5,814

1984

45.5%Mondale2,514

52.5%Reagan2,900

2.0%

R+7.0

D+6.9

D+11.2

5,526

1980

33.1%Carter1,666

47.0%Reagan2,363

19.9%

R+13.9

D+0.4

R+4.1

5,031

1976

39.4%Carter1,467

53.7%Ford1,998

6.9%

R+14.3

D+17.2

R+16.3

3,722

1972

32.4%McGovern906

63.9%Nixon1,786

3.7%

R+31.5

R+7.1

R+8.3

2,795

1968

34.9%Humphrey685

59.3%Nixon1,164

5.8%

R+24.4

R+28.2

R+23.7

1,963

1964

51.8%Johnson906

47.9%Goldwater839

0.3%

D+3.8

D+31.9

R+18.8

1,750

1960

35.9%Kennedy624

63.9%Nixon1,112

0.2%

R+28.0

D+2.7

R+28.2

1,740

1956

34.5%Stevenson584

65.3%Eisenhower1,105

0.2%

R+30.8

R+1.7

R+15.4

1,693

1952

35.1%Stevenson619

64.2%Eisenhower1,133

0.8%

R+29.1

R+13.5

R+18.3

1,766

1948

40.4%Truman636

55.9%Dewey881

3.7%

R+15.6

R+11.2

R+20.0

1,575

1944

47.6%Roosevelt644

51.9%Dewey703

0.5%

R+4.4

R+7.5

R+11.9

1,354

1940

51.3%Roosevelt860

48.2%Willkie808

0.4%

D+3.1

R+2.2

R+6.8

1,675

1936

48.6%Roosevelt775

43.3%Landon690

8.2%

D+5.3

R+6.6

R+18.9

1,595

1932

52.4%Roosevelt786

40.4%Hoover607

7.2%

D+11.9

D+45.9

R+5.9

1,501

1928

32.8%Smith400

66.7%Hoover814

0.5%

R+33.9

D+25.0

R+16.5

1,220

1924

7.7%Davis86

66.7%Coolidge744

25.4%La Follette284

R+59.0

R+8.0

R+33.8

1,116

1920

15.7%Cox196

66.6%Harding833

17.7%

R+51.0

R+56.6

R+24.8

1,250

1916

48.0%Wilson669

42.4%Hughes591

9.7%

D+5.6

D+8.0

D+2.4

1,395

1912

25.1%Wilson311

27.5%Taft341

47.4%

Roosevelt +19.9

D+43.3

R+22.0

1,239

1908

20.2%Bryan178

65.9%Taft581

13.8%

R+45.7

D+11.5

R+36.2

881

1904

14.7%Parker113

71.9%Roosevelt554

13.4%

R+57.3

R+31.0

R+37.6

770

1900

35.2%Bryan245

61.5%McKinley428

3.3%

R+26.3

R+9.3

R+18.7

696

1896

41.3%Bryan291

58.3%McKinley411

0.4%

R+17.0

D+2.2

R+10.9

705

1892

35.6%Cleveland226

54.9%Harrison348

9.5%

R+19.2

—

R+20.9

634

1888

—

No data

—

1884

—

No data

—

1880

—

No data

—

1876

—

No data

—

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

Year

Vote lead

Democratic

Republican

Total

2024

77.4%9,726

22.6%2,840

12,566

2020

74.8%9,600

25.2%3,226

12,826

2018

100.0%8,130

0.0%0

8,130

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

2024

74.7%9,466

25.3%3,214

12,680

2022

73.0%8,254

27.0%3,055

11,309

2018Class I

72.6%Maria Cantwell8,016

27.4%Susan Hutchison3,026

11,042

2016Class III

71.6%Patty Murray7,789

28.4%Chris Vance3,091

10,880

2012Class I

70.4%Maria Cantwell7,351

29.6%Michael Baumgartner3,095

10,446

2010Class III

65.2%Patty Murray5,994

34.8%Dino Rossi3,194

9,188

2006Class I

64.7%Maria Cantwell5,323

30.2%Mike McGavick2,483

8,228

2004Class III

64.3%Patty Murray6,376

31.9%George Nethercutt3,164

9,919

2000Class I

56.9%Maria Cantwell4,729

40.5%Slade Gorton3,362

8,310

1998Class III

64.2%Patty Murray4,471

35.8%Linda Smith2,494

6,965

1994Class I

53.7%Ron Sims3,380

46.3%Slade Gorton2,918

6,298

1992Class III

58.6%Patty Murray4,008

41.4%Rod Chandler2,827

6,835

1988Class I

51.1%Mike Lowry2,932

48.9%Slade Gorton2,811

5,743

1986Class III

46.8%Brock Adams2,157

52.4%Slade Gorton2,417

4,612

1982Class I

47.8%Scoop Jackson1,977

37.0%Doug Jewett1,531

4,140

1980Class III

39.5%Warren Magnuson1,903

60.5%Slade Gorton2,916

4,819

1976Class I

54.2%Scoop Jackson1,764

41.9%George M. Brown1,364

3,255

1974Class III

51.6%Warren Magnuson1,374

45.9%Jack Metcalf1,223

2,662

1970Class I

69.9%Scoop Jackson1,364

29.3%Charles W. Elicker571

1,952

1968Class III

49.4%Warren Magnuson922

50.2%Jack Metcalf938

1,868

1964Class I

59.0%Scoop Jackson990

41.0%Lloyd J. Andrews689

1,679

1962Class III

41.9%Warren Magnuson612

57.6%Richard Christensen841

1,460

1958Class I

62.9%Scoop Jackson868

36.6%William Bantz505

1,379

1956Class III

50.5%Warren Magnuson836

49.5%Arthur B. Langlie821

1,657

1952Class I

50.7%Scoop Jackson890

48.8%Harry P. Cain856

1,755

1950Class III

51.5%Warren Magnuson755

48.1%Walter Williams706

1,467

1946Class I

38.4%Hugh B. Mitchell460

61.3%Harry P. Cain735

1,199

1944Class III

46.8%Warren Magnuson596

53.2%Harry P. Cain677

1,273

1940Class I

50.1%Monrad C. Wallgren796

49.9%Stephen Chadwick792

1,588

1938Class III

46.4%Homer T. Bone649

53.4%Ewing D. Colvin746

1,398

1934Class I

54.0%Lewis Schwellenbach770

44.8%Reno Odlin639

1,427

1932Class III

55.4%Homer T. Bone796

39.0%Wesley L. Jones561

1,437

1928Class I

47.7%Clarence C. Dill571

52.3%Kenneth Mackintosh625

1,196

1926Class III

32.7%A. Scott Bullitt326

66.4%Wesley L. Jones663

998

1922Class I

41.0%Clarence C. Dill462

51.9%Miles Poindexter585

1,128

1920Class III

15.0%George Cotterill176

66.3%Wesley L. Jones780

1,177

1916Class I

34.1%George Turner456

56.5%Miles Poindexter755

1,337

1914Class III

19.2%W.W. Black224

40.1%Wesley L. Jones467

1,166

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

Year

Vote lead

Democratic

Republican

Total

1983Special · Class I

44.4%Mike Lowry1,749

55.6%Daniel J. Evans2,188

3,937

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

2024

73.3%Bob Ferguson9,348

26.7%Dave Reichert3,400

12,748

2020

73.5%Jay Inslee9,621

26.5%Loren Culp3,465

13,086

2016

68.9%Jay Inslee7,509

30.8%Bill Bryant3,356

10,900

2012

64.8%Jay Inslee6,763

35.2%Rob McKenna3,671

10,434

2008

67.7%Christine Gregoire7,044

32.3%Dino Rossi3,356

10,400

2004

59.6%Christine Gregoire5,872

37.1%Dino Rossi3,660

9,852

2000

64.8%Gary Locke5,385

32.3%John Carlson2,684

8,306

1996

63.2%Gary Locke4,567

36.8%Ellen Craswell2,660

7,227

1992

54.6%Mike Lowry3,758

45.4%Ken Eikenberry3,123

6,881

1988

65.9%Booth Gardner3,814

34.1%Bob Williams1,976

5,790

1984

48.5%Booth Gardner2,634

51.5%John Spellman2,799

5,433

1980

47.2%Jim McDermott2,315

52.8%John Spellman2,587

4,902

1976

45.2%Dixy Lee Ray1,658

52.0%John Spellman1,907

3,667

Frequently asked questions

Voter registration in San Juan County, WA
Year	Total registered
2016	13,573
2018	14,094
2020	15,387
2022	15,713
2024	16,197

How did San Juan County, Washington vote in 2024?

In 2024, San Juan County, Washington voted Democratic by 51.1 points (D+51.1), carried by the Democratic candidate. Out of 13,006 votes cast, 9,539 went Democratic and 2,890 went Republican.

When did San Juan County, Washington last vote Republican?

The most recent presidential election in which San Juan County, Washington voted Republican was 1984.

How many people live in San Juan County, Washington?

San Juan County, Washington has a population of 18,478 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.

What is the median household income in San Juan County, Washington?

Median household income in San Juan County, Washington is $84,800 — above the national median of $80,734. The Washington state median is $98,141.

What is the political history of San Juan County, Washington?

Akashic tracks 38 presidential elections in San Juan County, Washington from 1876 to 2024. Of those, 15 went Democratic and 18 went Republican.