Akashic

county

Brown County, SD

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

German42.7%33.1%12.5%

Norwegian10.9%10.4%—

English7.8%7.7%9.5%

Irish7.2%9.9%9.4%

American4.5%4.4%5.3%

Dutch2.4%3.4%—

Swedish2.3%2.5%—

Russian2.3%——

Mexican1.9%2.6%11.3%

Puerto Rican1.2%0.4%1.8%

Cuban0.6%—0.7%

Guatemalan0.6%0.5%0.5%

Dominican0.2%—0.7%

Turtle Mountain Chippewa0.2%——

Burmese1.5%0.2%—

Filipino0.5%0.2%0.9%

Chinese0.4%—1.3%

Vietnamese0.3%—0.6%

Korean0.2%—0.4%

African American†0.8%1.1%9.9%

South African0.2%——

Guyanese0.2%——

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	Brown County	South Dakota	United States
Median age	37.8	38.2	39.1
Age 18–24	10.6%	9.2%	9.2%
Age 65 and older	17.7%	18.0%	17.2%

Household economy

Measure	Brown County	South Dakota	United States
Median household income	$70,898	$75,081	$84,427
Poverty rate	11.7%	12.0%	12.5%
Bachelor's degree or higher (25+)	33.8%	31.9%	35.6%

Languages at home

Measure	Brown County	South Dakota	United States
Speaks a non-English language at home	6.6%	7.1%	22.3%
Spanish	2.6%	2.6%	13.6%
German or other West Germanic	1.5%	0.8%	0.5%
Other Asian & Pacific Island	1.4%	0.4%	1.1%

Religious landscape

Measure	Brown County	South Dakota	United States
Catholic	29.1%	14.8%	18.6%
Evangelical Protestant	20.3%	20.1%	16.5%
Unclaimed / not counted	24.7%	44.9%	51.5%
Mainline Protestant	24.0%	18.0%	5.2%

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 62.1% of 27,962 citizens 18+

HarrisDemocratic35.6%6,075TrumpRepublican62.5%10,645KennedyIndependent1.5%251

R+26.8

Lead: 4,570
Total: 17,043
vs nation: R+25.3
Turnout: 62.1%

BidenDemocratic37.3%6,538TrumpRepublican60.3%10,580JorgensenLibertarian2.4%429

R+23.0

Lead: 4,042
Total: 17,547
vs nation: R+27.5
Turnout: 62.0%

ClintonDemocratic33.8%5,452TrumpRepublican59.7%9,613JohnsonLibertarian5.7%915

R+25.8

Lead: 4,161
Total: 16,114
vs nation: R+27.9
Turnout: 57.9%

ObamaDemocratic45.1%7,250RomneyRepublican51.8%8,321OtherAll other candidates3.1%497

R+6.7

Lead: 1,071
Total: 16,068
vs nation: R+10.5
Turnout: —

ObamaDemocratic51.9%9,041McCainRepublican46.3%8,067OtherAll other candidates1.8%318

D+5.6

Lead: 974
Total: 17,426
vs nation: R+1.7
Turnout: —

KerryDemocratic42.7%7,943BushRepublican55.8%10,386OtherAll other candidates1.5%270

R+13.1

Lead: 2,443
Total: 18,599
vs nation: R+10.7
Turnout: —

GoreDemocratic43.3%7,173BushRepublican54.7%9,060OtherAll other candidates2.0%323

R+11.4

Lead: 1,887
Total: 16,556
vs nation: R+11.9
Turnout: —

ClintonDemocratic48.1%7,913DoleRepublican41.4%6,801PerotReform9.9%1,622

D+6.8

Lead: 1,112
Total: 16,447
vs nation: R+1.8
Turnout: —

Key facts

2024 presidential margin: R+26.8MIT Election Lab
Population: 37,8772024 5-year
Median household income: $70,8982024 5-year
White (non-Hispanic): 84.7%2024 5-year
Black: 1.3%2024 5-year
Hispanic / Latino: 4.7%2024 5-year
Peak Democratic margin: D+50.7 in 1912MIT Election Lab
Peak Republican margin: R+52.7 in 1924MIT Election Lab
Most similar: Lyon County, MN · twin score 86.0

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: 62.1%17,358 participants ÷ 27,962 CVAP
2020→2022 drop-off: +10.5 ptsVolatile
Drop-off versus state: -1.8 ptsPositive means a larger decline than the statewide pattern
Mechanical 2026 scenario: 51.6%–53.2%Recent-cycle and two-cycle persistence scenarios; not a forecast

Election	Participants	CVAP	Turnout	Quality
2016 · Presidential	16,511	28,512	57.9%	A/A
2018 · Midterm	14,543	28,728	50.6%	A/A
2020 · Presidential	17,768	28,671	62.0%	A/A
2022 · Midterm	14,372	27,928	51.5%	C/A
2024 · Presidential	17,358	27,962	62.1%	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

22 precincts · 0 votes

Election

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

Brown County precinct-level presidential election results for 2024

VTD-precinct 1 Aberdeen1	—	—	No votes
VTD-precinct 10 Aberdeen10	—	—	No votes
VTD-precinct 11 Aberdeen11	—	—	No votes
VTD-precinct 12 EAberdeen12	—	—	No votes
VTD-precinct 13 Shlby--Clmbia-Cmbria-OrdwyTwp-ClmbiaCity13	—	—	No votes
VTD-precinct 14 Oneota-Brnrd-Wstprt-GrlndTwp-WestprtCty14	—	—	No votes
VTD-precinct 15 Franklin-Carlisle-Ravinia-Mercier-LincolnTwp15	—	—	No votes
VTD-precinct 16 WAberdeenTwp16	—	—	No votes
VTD-precinct 17 Highland-NewHope-WarnerTwp-Warner17	—	—	No votes
VTD-precinct 18 Gem-WRondell-ERondellTwp-Stratford18	—	—	No votes
VTD-precinct 1919	—	—	No votes
VTD-precinct 2 Aberdeen2	—	—	No votes
VTD-precinct 20 SDetroit-ClaremontTwp-ClaremontCity20	—	—	No votes
VTD-precinct 21 Lbrt-Hcla-Prt-Grnld-Lnsg-Nth-DtrtTwp-HclCy21	—	—	No votes
VTD-precinct 22 Plmr-Ocla-Savo-Alsn-Frdrck-RchdTwp-FrdrCy22	—	—	No votes
VTD-precinct 3 Aberdeen3	—	—	No votes
VTD-precinct 4 Aberdeen4	—	—	No votes
VTD-precinct 5 Aberdeen5	—	—	No votes
VTD-precinct 6 Aberdeen6	—	—	No votes
VTD-precinct 7 Aberdeen7	—	—	No votes
VTD-precinct 8 Aberdeen8	—	—	No votes
VTD-precinct 9 Aberdeen9	—	—	No votes

presidential history

Presidential margin, 1892–2024

Democratic minus Republican, by election

Presidential margin over time
Year	Margin (D minus R)
1892	−36.6%
1896	+7.1%
1900	−11.8%
1904	−42.4%
1908	−18.5%
1912	+50.7%
1916	+0.3%
1920	−42.7%
1924	−52.7%
1928	−17.6%
1932	+29.6%
1936	+33.4%
1940	+9.9%
1944	+6.2%
1948	+11.7%
1952	−21.9%
1956	−6.6%
1960	−0.9%
1964	+24.5%
1968	+4.2%
1972	+0.5%
1976	+7.7%
1980	−25.0%
1984	−21.1%
1988	+0.8%
1992	+4.7%
1996	+6.8%
2000	−11.4%
2004	−13.1%
2008	+5.6%
2012	−6.7%
2016	−25.8%
2020	−23.0%
2024	−26.8%

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	R	35.6%Harris6,075	62.5%Trump10,645	1.5%Kennedy251	R+26.8	R+3.8	R+25.3	17,043
2020	R	37.3%Biden6,538	60.3%Trump10,580	2.4%Jorgensen429	R+23.0	D+2.8	R+27.5	17,547
2016	R	33.8%Clinton5,452	59.7%Trump9,613	5.7%Johnson915	R+25.8	R+19.2	R+27.9	16,114
2012	R	45.1%Obama7,250	51.8%Romney8,321	3.1%	R+6.7	R+12.3	R+10.5	16,068
2008	D	51.9%Obama9,041	46.3%McCain8,067	1.8%	D+5.6	D+18.7	R+1.7	17,426
2004	R	42.7%Kerry7,943	55.8%Bush10,386	1.5%	R+13.1	R+1.7	R+10.7	18,599
2000	R	43.3%Gore7,173	54.7%Bush9,060	2.0%	R+11.4	R+18.2	R+11.9	16,556
1996	D	48.1%Clinton7,913	41.4%Dole6,801	9.9%Perot1,622	D+6.8	D+2.0	R+1.8	16,447
1992	D	41.7%Clinton7,521	36.9%Bush6,665	21.1%Perot3,812	D+4.7	D+4.0	R+0.8	18,047
1988	D	50.1%Dukakis8,673	49.3%Bush8,537	0.5%	D+0.8	D+21.9	D+8.5	17,302
1984	R	39.2%Mondale6,852	60.4%Reagan10,541	0.4%	R+21.1	D+3.9	R+2.9	17,465
1980	R	33.6%Carter6,050	58.6%Reagan10,550	7.8%	R+25.0	R+32.7	R+15.3	17,999
1976	D	53.4%Carter8,888	45.7%Ford7,609	0.8%	D+7.7	D+7.2	D+5.6	16,633
1972	D	49.9%McGovern8,216	49.4%Nixon8,134	0.6%	D+0.5	R+3.7	D+23.7	16,451
1968	D	50.2%Humphrey7,302	46.0%Nixon6,685	3.8%	D+4.2	R+20.2	D+4.9	14,547
1964	D	62.2%Johnson9,107	37.8%Goldwater5,524	0.0%	D+24.5	D+25.4	D+1.9	14,631
1960	R	49.5%Kennedy7,893	50.5%Nixon8,037	0.0%	R+0.9	D+5.7	R+1.1	15,930
1956	R	46.7%Stevenson7,184	53.3%Eisenhower8,193	0.0%	R+6.6	D+15.3	D+8.8	15,377
1952	R	39.1%Stevenson6,140	60.9%Eisenhower9,581	0.0%	R+21.9	R+33.6	R+11.1	15,721
1948	D	55.1%Truman7,148	43.4%Dewey5,632	1.5%	D+11.7	D+5.5	D+7.2	12,972
1944	D	53.1%Roosevelt6,352	46.9%Dewey5,611	0.0%	D+6.2	R+3.7	R+1.3	11,963
1940	D	55.0%Roosevelt8,048	45.0%Willkie6,598	0.0%	D+9.9	R+23.5	±0.0	14,646
1936	D	65.6%Roosevelt9,177	32.2%Landon4,505	2.2%	D+33.4	D+3.8	D+9.1	13,993
1932	D	63.7%Roosevelt8,669	34.1%Hoover4,639	2.2%	D+29.6	D+47.2	D+11.8	13,601
1928	R	40.4%Smith5,065	58.0%Hoover7,266	1.5%	R+17.6	D+35.1	R+0.1	12,522
1924	R	8.0%Davis361	60.7%Coolidge2,740	31.3%La Follette1,415	R+52.7	R+10.0	R+27.5	4,516
1920	R	13.8%Cox1,364	56.5%Harding5,581	29.6%	R+42.7	R+43.0	R+16.5	9,871
1916	D	45.5%Wilson2,676	45.2%Hughes2,659	9.3%	D+0.3	R+50.4	R+2.9	5,884
1912	D	50.7%Wilson2,488	0.0%Taft0	49.3%	D+50.7	D+69.2	D+31.1	4,908
1908	R	37.5%Bryan1,772	55.9%Taft2,646	6.6%	R+18.5	D+23.9	R+8.9	4,731
1904	R	23.9%Parker988	66.3%Roosevelt2,737	9.7%	R+42.4	R+30.6	R+22.7	4,127
1900	R	42.7%Bryan1,722	54.4%McKinley2,197	2.9%	R+11.8	R+18.9	R+4.2	4,037
1896	D	53.3%Bryan1,867	46.1%McKinley1,618	0.6%	D+7.1	D+43.7	D+13.2	3,506
1892	O	8.7%Cleveland279	45.3%Harrison1,446	45.9%	Weaver +0.6	—	R+38.2	3,190
1888	—	—	—	—	No data	—	—	—
1884	—	—	—	—	No data	—	—	—
1880	—	—	—	—	No data	—	—	—
1876	—	—	—	—	No data	—	—	—

Federal and statewide elections · 2 House · 37 Senate · 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
2020	R	0.0%0	100.0%13,706	13,706
2018	R	39.6%5,482	60.4%8,346	13,828

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	R	28.0%3,893	68.8%9,577	13,921
2020Class II	R	36.0%Dan Ahlers6,283	64.0%Mike Rounds11,168	17,451
2016Class III	R	29.7%Jay Williams4,793	70.3%John Thune11,371	16,164
2014Class II	R	33.4%Rick Weiland4,023	44.6%Mike Rounds5,382	12,062
2010Class III	R	0.0%None0	100.0%John Thune9,862	9,862
2008Class II	D	71.4%Tim Johnson12,482	28.6%Joel Dykstra4,993	17,475
2004Class III	D	57.4%Tom Daschle10,750	42.6%John Thune7,981	18,731
2002Class II	D	57.3%Tim Johnson9,868	42.0%John Thune7,226	17,223
1998Class III	D	68.2%Tom Daschle9,290	30.8%Ron Schmidt4,202	13,624
1996Class II	D	58.9%Tim Johnson9,779	41.1%Larry Pressler6,827	16,606
1992Class III	D	71.3%Tom Daschle12,867	23.9%Charlene Haar4,317	18,056
1990Class II	D	55.5%Ted Muenster7,934	41.6%Larry Pressler5,951	14,301
1986Class III	D	58.0%Tom Daschle9,503	42.0%James Abdnor6,890	16,393
1984Class II	R	26.5%George V. Cunningham4,719	73.5%Larry Pressler13,069	17,788
1980Class III	R	43.5%George McGovern7,855	54.5%James Abdnor9,850	18,074
1978Class II	R	30.9%Don Barnett4,221	69.1%Larry Pressler9,445	13,666
1974Class III	D	59.3%George McGovern9,145	40.7%Leo K. Thorsness6,286	15,431
1972Class II	D	58.5%James Abourezk9,730	41.5%Robert W. Hirsch6,907	16,637
1968Class III	D	61.9%George McGovern9,078	38.1%Archie Gubbrud5,581	14,659
1966Class II	R	36.9%Donn H. Wright4,461	63.1%Karl E. Mundt7,626	12,087
1962Class III	D	58.7%George McGovern7,727	41.3%Joe Bottum5,427	13,154
1960Class II	D	53.9%George McGovern8,545	46.1%Karl E. Mundt7,299	15,844
1956Class III	D	57.6%Kenneth Holum8,808	42.4%Francis Case6,493	15,301
1954Class II	D	54.2%Kenneth Holum6,663	45.8%Karl E. Mundt5,626	12,289
1950Class III	R	45.9%John A. Engel5,846	54.1%Francis Case6,893	12,739
1948Class II	R	47.1%John A. Engel5,983	52.9%Karl E. Mundt6,726	12,709
1944Class III	R	42.4%George M. Bradshaw4,940	57.6%Chandler Gurney6,709	11,649
1942Class II	D	58.7%Tom Berry4,966	41.3%Harlan J. Bushfield3,492	8,458
1938Class III	D	56.2%Tom Berry7,033	43.8%Chandler Gurney5,473	12,506
1936Class II	D	58.5%William J. Bulow7,951	35.0%Chandler Gurney4,766	13,600
1932Class III	R	47.3%U.S.G. Cherry6,249	51.3%Peter Norbeck6,784	13,215
1930Class II	D	55.3%William J. Bulow4,973	44.7%William H. McMaster4,020	8,993
1926Class III	R	25.8%C.J. Gunderson922	67.4%Peter Norbeck2,406	3,570
1924Class II	R	25.0%U.S.G. Cherry1,267	46.2%William H. McMaster2,340	5,066
1920Class III	R	14.5%U.S.G. Cherry1,471	50.1%Peter Norbeck5,074	10,119
1918Class II	R	41.4%W.T. Rinehart1,762	51.9%Thomas Sterling2,211	4,259
1914Class III	R	44.0%Edwin S. Johnson1,885	46.9%Charles H. Burke2,012	4,288

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	R	37.0%Jamie Smith5,167	60.6%Kristi Noem8,456	13,964
2018	D	51.1%Billie Sutton And Michelle Lavallee7,338	47.5%Kristi Noem And Larry Rhoden6,821	14,365
2014	R	32.1%Susan Wismer3,864	64.9%Dennis Daugaard7,801	12,019
2010	R	40.5%Scott Heidepriem5,816	59.5%Dennis Daugaard8,541	14,357
2006	R	34.4%Jack Billion5,460	63.7%Mike Rounds10,092	15,850
2002	R	44.0%Jim Abbott7,520	54.9%Mike Rounds9,398	17,107
1998	R	30.6%Bernie Hunhoff4,109	67.3%Bill Janklow9,050	13,448
1994	R	41.2%Jim Beddow6,701	56.0%Bill Janklow9,117	16,276
1990	R	37.7%Bob Samuelson5,382	62.3%George Mickelson8,906	14,288
1986	D	63.7%Lars Herseth10,428	36.3%George Mickelson5,936	16,364
1982	R	28.4%Mike O'Connor4,513	71.6%Bill Janklow11,385	15,898
1978	R	43.0%Roger D. McKellips5,987	57.0%Bill Janklow7,943	13,930

voter registration

Registered voters

By party of registration, over time

Party registration · 2026R+31.3

Presidential vote · 2024R+26.8

Registration leans Republican; the presidential vote runs 4.5 points more Republican.

23,797 registered voters · 2026

Democratic24.0%Republican55.4%Unaffiliated7.7%Other12.9%

domestic migration

Who moves in and out

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

−116 net domestic migration · 2025

20112025

Net −860 over 2011–2025 · gain loss

Arrivals reported $55,032 in average income, against $98,253 for residents who stayed — 44% lower. (IRS SOI, 2022–23)

The places arrivals came from lean R+38.0 on average — 11 points more Republican-leaning than Brown County, SD itself (R+26.8).

Where arrivals came from lean of each source

Spink County, SD43R+39.0
Edmunds County, SD42R+60.8
Minnehaha County, SD37R+12.7
Codington County, SD25R+40.8
Day County, SD22R+29.9
Beadle County, SD21R+40.1

Where departures went households, 2022–23

Minnehaha County, SD89
Lincoln County, SD39
Codington County, SD36
Spink County, SD32
Hennepin County, MN22
Cass County, ND20

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 Brown County, SD in Brown County, SD: net domestic migration by year
Year	Net domestic migration
2011	+58
2012	+389
2013	+406
2014	−38
2015	−3
2016	+151
2017	+21
2018	−373
2019	−473
2021	−168
2022	−275
2023	−282
2024	−157
2025	−116

Brown County anchors the agricultural northeast corner of South Dakota, with Aberdeen serving as a regional trade and healthcare center. Once competitive at the presidential level, it has shifted toward double-digit Republican margins since 2012.

Across the recorded series it reached a Democratic high of 50.7 points in 1912 and a Republican high of 52.7 points in 1924. Between 2020 and 2024 the county moved 3.8 points toward the Republican candidate; the 2024 margin was 26.8 points.

A population of 37,877, a 85% non-Hispanic-white share, and a median household income of $70,898 describe the county. The county's voting pattern over the last decade is most similar to that of Lyon County and Richland County.

Political twins — counties

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

Lyon County

Minnesota

86.0twin score

elasticity% Catholicmedian age≠ French ancestry

Richland County

North Dakota

83.0twin score

elasticity% Catholic% unaffiliated≠ Norwegian ancestry

Yankton County

South Dakota

82.8twin score

elasticity% Catholic2008 margin≠ Swedish ancestry

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 →

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Cities & towns in Brown County

Aberdeen

R+27

28.2K residents

South Dakota at the ballot boxAll elections →

Presidentcounty detail2024 US Senatestatewide2022 Governorstate + county2022 US Houseall districts2024

Frequently asked questions

How did Brown County, South Dakota vote in 2024?

In 2024, Brown County, South Dakota voted Republican by 26.8 points (R+26.8), carried by the Republican candidate. Out of 17,043 votes cast, 6,075 went Democratic and 10,645 went Republican.

When did Brown County, South Dakota last vote Democratic?

The most recent presidential election in which Brown County, South Dakota voted Democratic was 2008.

How many people live in Brown County, South Dakota?

Brown County, South Dakota has a population of 37,877 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.

What is the median household income in Brown County, South Dakota?

Median household income in Brown County, South Dakota is $70,898 — below the national median of $80,734. The South Dakota state median is $75,081.

What is the political history of Brown County, South Dakota?

Akashic tracks 38 presidential elections in Brown County, South Dakota from 1876 to 2024. Of those, 16 went Democratic and 17 went Republican.

Measure

Brown County

South Dakota

United States

Median age

37.8

38.2

39.1

Age 18–24

10.6%

9.2%

Age 65 and older

17.7%

18.0%

17.2%

Measure

Brown County

South Dakota

United States

Median household income

$70,898

$75,081

$84,427

Poverty rate

11.7%

12.0%

12.5%

Bachelor's degree or higher (25+)

33.8%

31.9%

35.6%

Measure

Brown County

South Dakota

United States

Speaks a non-English language at home

6.6%

7.1%

22.3%

Spanish

2.6%

13.6%

German or other West Germanic

1.5%

0.8%

0.5%

Other Asian & Pacific Island

1.4%

0.4%

1.1%

Measure

Brown County

South Dakota

United States

Catholic

29.1%

14.8%

18.6%

Evangelical Protestant

20.3%

20.1%

16.5%

Unclaimed / not counted

24.7%

44.9%

51.5%

Mainline Protestant

24.0%

18.0%

5.2%

Key facts

2024 presidential margin

R+26.8MIT Election Lab

Population

37,8772024 5-year

Median household income

$70,8982024 5-year

White (non-Hispanic)

84.7%2024 5-year

Black

1.3%2024 5-year

Hispanic / Latino

4.7%2024 5-year

Peak Democratic margin

D+50.7 in 1912MIT Election Lab

Peak Republican margin

R+52.7 in 1924MIT Election Lab

Most similar

Lyon County, MN · twin score 86.0

Election

Participants

CVAP

Turnout

Quality

2016 · Presidential

16,511

28,512

57.9%

A/A

2018 · Midterm

14,543

28,728

50.6%

A/A

2020 · Presidential

17,768

28,671

62.0%

A/A

2022 · Midterm

14,372

27,928

51.5%

C/A

2024 · Presidential

17,358

27,962

62.1%

A/A

Brown County precinct-level presidential election results for 2024

VTD-precinct 1 Aberdeen1

—

No votes

VTD-precinct 10 Aberdeen10

—

No votes

VTD-precinct 11 Aberdeen11

—

No votes

VTD-precinct 12 EAberdeen12

—

No votes

VTD-precinct 13 Shlby--Clmbia-Cmbria-OrdwyTwp-ClmbiaCity13

—

No votes

VTD-precinct 14 Oneota-Brnrd-Wstprt-GrlndTwp-WestprtCty14

—

No votes

VTD-precinct 15 Franklin-Carlisle-Ravinia-Mercier-LincolnTwp15

—

No votes

VTD-precinct 16 WAberdeenTwp16

—

No votes

VTD-precinct 17 Highland-NewHope-WarnerTwp-Warner17

—

No votes

VTD-precinct 18 Gem-WRondell-ERondellTwp-Stratford18

—

No votes

VTD-precinct 1919

—

No votes

VTD-precinct 2 Aberdeen2

—

No votes

VTD-precinct 20 SDetroit-ClaremontTwp-ClaremontCity20

—

No votes

VTD-precinct 21 Lbrt-Hcla-Prt-Grnld-Lnsg-Nth-DtrtTwp-HclCy21

—

No votes

VTD-precinct 22 Plmr-Ocla-Savo-Alsn-Frdrck-RchdTwp-FrdrCy22

—

No votes

VTD-precinct 3 Aberdeen3

—

No votes

VTD-precinct 4 Aberdeen4

—

No votes

VTD-precinct 5 Aberdeen5

—

No votes

VTD-precinct 6 Aberdeen6

—

No votes

VTD-precinct 7 Aberdeen7

—

No votes

VTD-precinct 8 Aberdeen8

—

No votes

VTD-precinct 9 Aberdeen9

—

No votes

Presidential margin, 1892–2024

Democratic minus Republican, by election

Presidential margin over time
Year	Margin (D minus R)
1892	−36.6%
1896	+7.1%
1900	−11.8%
1904	−42.4%
1908	−18.5%
1912	+50.7%
1916	+0.3%
1920	−42.7%
1924	−52.7%
1928	−17.6%
1932	+29.6%
1936	+33.4%
1940	+9.9%
1944	+6.2%
1948	+11.7%
1952	−21.9%
1956	−6.6%
1960	−0.9%
1964	+24.5%
1968	+4.2%
1972	+0.5%
1976	+7.7%
1980	−25.0%
1984	−21.1%
1988	+0.8%
1992	+4.7%
1996	+6.8%
2000	−11.4%
2004	−13.1%
2008	+5.6%
2012	−6.7%
2016	−25.8%
2020	−23.0%
2024	−26.8%

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

35.6%Harris6,075

62.5%Trump10,645

1.5%Kennedy251

R+26.8

R+3.8

R+25.3

17,043

2020

37.3%Biden6,538

60.3%Trump10,580

2.4%Jorgensen429

R+23.0

D+2.8

R+27.5

17,547

2016

33.8%Clinton5,452

59.7%Trump9,613

5.7%Johnson915

R+25.8

R+19.2

R+27.9

16,114

2012

45.1%Obama7,250

51.8%Romney8,321

3.1%

R+6.7

R+12.3

R+10.5

16,068

2008

51.9%Obama9,041

46.3%McCain8,067

1.8%

D+5.6

D+18.7

R+1.7

17,426

2004

42.7%Kerry7,943

55.8%Bush10,386

1.5%

R+13.1

R+1.7

R+10.7

18,599

2000

43.3%Gore7,173

54.7%Bush9,060

2.0%

R+11.4

R+18.2

R+11.9

16,556

1996

48.1%Clinton7,913

41.4%Dole6,801

9.9%Perot1,622

D+6.8

D+2.0

R+1.8

16,447

1992

41.7%Clinton7,521

36.9%Bush6,665

21.1%Perot3,812

D+4.7

D+4.0

R+0.8

18,047

1988

50.1%Dukakis8,673

49.3%Bush8,537

0.5%

D+0.8

D+21.9

D+8.5

17,302

1984

39.2%Mondale6,852

60.4%Reagan10,541

0.4%

R+21.1

D+3.9

R+2.9

17,465

1980

33.6%Carter6,050

58.6%Reagan10,550

7.8%

R+25.0

R+32.7

R+15.3

17,999

1976

53.4%Carter8,888

45.7%Ford7,609

0.8%

D+7.7

D+7.2

D+5.6

16,633

1972

49.9%McGovern8,216

49.4%Nixon8,134

0.6%

D+0.5

R+3.7

D+23.7

16,451

1968

50.2%Humphrey7,302

46.0%Nixon6,685

3.8%

D+4.2

R+20.2

D+4.9

14,547

1964

62.2%Johnson9,107

37.8%Goldwater5,524

0.0%

D+24.5

D+25.4

D+1.9

14,631

1960

49.5%Kennedy7,893

50.5%Nixon8,037

0.0%

R+0.9

D+5.7

R+1.1

15,930

1956

46.7%Stevenson7,184

53.3%Eisenhower8,193

0.0%

R+6.6

D+15.3

D+8.8

15,377

1952

39.1%Stevenson6,140

60.9%Eisenhower9,581

0.0%

R+21.9

R+33.6

R+11.1

15,721

1948

55.1%Truman7,148

43.4%Dewey5,632

1.5%

D+11.7

D+5.5

D+7.2

12,972

1944

53.1%Roosevelt6,352

46.9%Dewey5,611

0.0%

D+6.2

R+3.7

R+1.3

11,963

1940

55.0%Roosevelt8,048

45.0%Willkie6,598

0.0%

D+9.9

R+23.5

±0.0

14,646

1936

65.6%Roosevelt9,177

32.2%Landon4,505

2.2%

D+33.4

D+3.8

D+9.1

13,993

1932

63.7%Roosevelt8,669

34.1%Hoover4,639

2.2%

D+29.6

D+47.2

D+11.8

13,601

1928

40.4%Smith5,065

58.0%Hoover7,266

1.5%

R+17.6

D+35.1

R+0.1

12,522

1924

8.0%Davis361

60.7%Coolidge2,740

31.3%La Follette1,415

R+52.7

R+10.0

R+27.5

4,516

1920

13.8%Cox1,364

56.5%Harding5,581

29.6%

R+42.7

R+43.0

R+16.5

9,871

1916

45.5%Wilson2,676

45.2%Hughes2,659

9.3%

D+0.3

R+50.4

R+2.9

5,884

1912

50.7%Wilson2,488

0.0%Taft0

49.3%

D+50.7

D+69.2

D+31.1

4,908

1908

37.5%Bryan1,772

55.9%Taft2,646

6.6%

R+18.5

D+23.9

R+8.9

4,731

1904

23.9%Parker988

66.3%Roosevelt2,737

9.7%

R+42.4

R+30.6

R+22.7

4,127

1900

42.7%Bryan1,722

54.4%McKinley2,197

2.9%

R+11.8

R+18.9

R+4.2

4,037

1896

53.3%Bryan1,867

46.1%McKinley1,618

0.6%

D+7.1

D+43.7

D+13.2

3,506

1892

8.7%Cleveland279

45.3%Harrison1,446

45.9%

Weaver +0.6

—

R+38.2

3,190

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

2020

0.0%0

100.0%13,706

13,706

2018

39.6%5,482

60.4%8,346

13,828

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

28.0%3,893

68.8%9,577

13,921

2020Class II

36.0%Dan Ahlers6,283

64.0%Mike Rounds11,168

17,451

2016Class III

29.7%Jay Williams4,793

70.3%John Thune11,371

16,164

2014Class II

33.4%Rick Weiland4,023

44.6%Mike Rounds5,382

12,062

2010Class III

0.0%None0

100.0%John Thune9,862

9,862

2008Class II

71.4%Tim Johnson12,482

28.6%Joel Dykstra4,993

17,475

2004Class III

57.4%Tom Daschle10,750

42.6%John Thune7,981

18,731

2002Class II

57.3%Tim Johnson9,868

42.0%John Thune7,226

17,223

1998Class III

68.2%Tom Daschle9,290

30.8%Ron Schmidt4,202

13,624

1996Class II

58.9%Tim Johnson9,779

41.1%Larry Pressler6,827

16,606

1992Class III

71.3%Tom Daschle12,867

23.9%Charlene Haar4,317

18,056

1990Class II

55.5%Ted Muenster7,934

41.6%Larry Pressler5,951

14,301

1986Class III

58.0%Tom Daschle9,503

42.0%James Abdnor6,890

16,393

1984Class II

26.5%George V. Cunningham4,719

73.5%Larry Pressler13,069

17,788

1980Class III

43.5%George McGovern7,855

54.5%James Abdnor9,850

18,074

1978Class II

30.9%Don Barnett4,221

69.1%Larry Pressler9,445

13,666

1974Class III

59.3%George McGovern9,145

40.7%Leo K. Thorsness6,286

15,431

1972Class II

58.5%James Abourezk9,730

41.5%Robert W. Hirsch6,907

16,637

1968Class III

61.9%George McGovern9,078

38.1%Archie Gubbrud5,581

14,659

1966Class II

36.9%Donn H. Wright4,461

63.1%Karl E. Mundt7,626

12,087

1962Class III

58.7%George McGovern7,727

41.3%Joe Bottum5,427

13,154

1960Class II

53.9%George McGovern8,545

46.1%Karl E. Mundt7,299

15,844

1956Class III

57.6%Kenneth Holum8,808

42.4%Francis Case6,493

15,301

1954Class II

54.2%Kenneth Holum6,663

45.8%Karl E. Mundt5,626

12,289

1950Class III

45.9%John A. Engel5,846

54.1%Francis Case6,893

12,739

1948Class II

47.1%John A. Engel5,983

52.9%Karl E. Mundt6,726

12,709

1944Class III

42.4%George M. Bradshaw4,940

57.6%Chandler Gurney6,709

11,649

1942Class II

58.7%Tom Berry4,966

41.3%Harlan J. Bushfield3,492

8,458

1938Class III

56.2%Tom Berry7,033

43.8%Chandler Gurney5,473

12,506

1936Class II

58.5%William J. Bulow7,951

35.0%Chandler Gurney4,766

13,600

1932Class III

47.3%U.S.G. Cherry6,249

51.3%Peter Norbeck6,784

13,215

1930Class II

55.3%William J. Bulow4,973

44.7%William H. McMaster4,020

8,993

1926Class III

25.8%C.J. Gunderson922

67.4%Peter Norbeck2,406

3,570

1924Class II

25.0%U.S.G. Cherry1,267

46.2%William H. McMaster2,340

5,066

1920Class III

14.5%U.S.G. Cherry1,471

50.1%Peter Norbeck5,074

10,119

1918Class II

41.4%W.T. Rinehart1,762

51.9%Thomas Sterling2,211

4,259

1914Class III

44.0%Edwin S. Johnson1,885

46.9%Charles H. Burke2,012

4,288

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

37.0%Jamie Smith5,167

60.6%Kristi Noem8,456

13,964

2018

51.1%Billie Sutton And Michelle Lavallee7,338

47.5%Kristi Noem And Larry Rhoden6,821

14,365

2014

32.1%Susan Wismer3,864

64.9%Dennis Daugaard7,801

12,019

2010

40.5%Scott Heidepriem5,816

59.5%Dennis Daugaard8,541

14,357

2006

34.4%Jack Billion5,460

63.7%Mike Rounds10,092

15,850

2002

44.0%Jim Abbott7,520

54.9%Mike Rounds9,398

17,107

1998

30.6%Bernie Hunhoff4,109

67.3%Bill Janklow9,050

13,448

1994

41.2%Jim Beddow6,701

56.0%Bill Janklow9,117

16,276

1990

37.7%Bob Samuelson5,382

62.3%George Mickelson8,906

14,288

1986

63.7%Lars Herseth10,428

36.3%George Mickelson5,936

16,364

1982

28.4%Mike O'Connor4,513

71.6%Bill Janklow11,385

15,898

1978

43.0%Roger D. McKellips5,987

57.0%Bill Janklow7,943

13,930

Frequently asked questions

How did Brown County, South Dakota vote in 2024?

In 2024, Brown County, South Dakota voted Republican by 26.8 points (R+26.8), carried by the Republican candidate. Out of 17,043 votes cast, 6,075 went Democratic and 10,645 went Republican.

When did Brown County, South Dakota last vote Democratic?

The most recent presidential election in which Brown County, South Dakota voted Democratic was 2008.

How many people live in Brown County, South Dakota?

Brown County, South Dakota has a population of 37,877 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.

What is the median household income in Brown County, South Dakota?

Median household income in Brown County, South Dakota is $70,898 — below the national median of $80,734. The South Dakota state median is $75,081.

What is the political history of Brown County, South Dakota?

Akashic tracks 38 presidential elections in Brown County, South Dakota from 1876 to 2024. Of those, 16 went Democratic and 17 went Republican.