Akashic

county

Clarke County, IA

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

German21.8%30.5%12.5%

English13.3%10.2%9.5%

Irish9.7%12.8%9.4%

American4.6%4.6%5.3%

Italian2.6%1.6%4.8%

Swedish2.0%1.9%—

French1.9%—1.6%

Dutch1.9%2.7%—

Mexican14.7%5.0%11.3%

Colombian0.8%—0.4%

Guatemalan0.6%0.4%0.5%

Honduran0.4%0.2%0.3%

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	Clarke County	Iowa	United States
Median age	37.9	38.8	39.1
Age 18–24	9.0%	10.0%	9.2%
Age 65 and older	20.0%	18.1%	17.2%

Household economy

Measure	Clarke County	Iowa	United States
Median household income	$71,641	$75,059	$84,427
Poverty rate	9.7%	11.1%	12.5%
Bachelor's degree or higher (25+)	16.0%	31.8%	35.6%

Languages at home

Measure	Clarke County	Iowa	United States
Speaks a non-English language at home	11.2%	9.2%	22.3%
Spanish	7.7%	4.7%	13.6%
German or other West Germanic	2.6%	0.6%	0.5%

Religious landscape

Measure	Clarke County	Iowa	United States
Catholic	9.2%	14.7%	18.6%
Evangelical Protestant	20.9%	10.9%	16.5%
Unclaimed / not counted	57.3%	55.2%	51.5%
Mainline Protestant	10.5%	15.8%	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 65.6% of 6,944 citizens 18+

HarrisDemocratic28.2%1,265TrumpRepublican70.1%3,140KennedyWe The People0.9%40

R+41.9

Lead: 1,875
Total: 4,479
vs nation: R+40.4
Turnout: 65.6%

BidenDemocratic31.4%1,466TrumpRepublican67.3%3,144JorgensenLibertarian0.7%34

R+35.9

Lead: 1,678
Total: 4,670
vs nation: R+40.4
Turnout: 70.2%

ClintonDemocratic32.5%1,465TrumpRepublican60.2%2,713JohnsonLibertarian3.5%160

R+27.7

Lead: 1,248
Total: 4,509
vs nation: R+29.8
Turnout: 67.9%

ObamaDemocratic49.4%2,189RomneyRepublican47.9%2,124JohnsonLibertarian0.9%38

D+1.5

Lead: 65
Total: 4,430
vs nation: R+2.4
Turnout: —

ObamaDemocratic49.9%2,218McCainRepublican47.7%2,118OtherAll other candidates2.4%107

D+2.3

Lead: 100
Total: 4,443
vs nation: R+5.0
Turnout: —

KerryDemocratic50.9%2,323BushRepublican48.2%2,200OtherAll other candidates0.9%43

D+2.7

Lead: 123
Total: 4,566
vs nation: D+5.2
Turnout: —

GoreDemocratic49.8%2,081BushRepublican47.5%1,984NaderGreen1.8%75

D+2.3

Lead: 97
Total: 4,176
vs nation: D+1.8
Turnout: —

ClintonDemocratic52.3%2,053DoleRepublican35.7%1,401PerotReform11.2%440

D+16.6

Lead: 652
Total: 3,923
vs nation: D+8.1
Turnout: —

Key facts

2024 presidential margin: R+41.9MIT Election Lab
Population: 9,6622024 5-year
Median household income: $71,6412024 5-year
White (non-Hispanic): 77.5%2024 5-year
Black: 0.1%2024 5-year
Hispanic / Latino: 16.8%2024 5-year
Peak Democratic margin: D+26.4 in 1964MIT Election Lab
Peak Republican margin: R+42.5 in 1920MIT Election Lab
Most similar: Wapello County, IA · twin score 87.9

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: 65.6%4,552 participants ÷ 6,944 CVAP
2020→2022 drop-off: +21.4 ptsPresidential-dependent
Drop-off versus state: +0.4 ptsPositive means a larger decline than the statewide pattern
Mechanical 2026 scenario: 44.2%–49.5%Recent-cycle and two-cycle persistence scenarios; not a forecast

Election	Participants	CVAP	Turnout	Quality
2016 · Presidential	4,509	6,637	67.9%	A/A
2018 · Midterm	3,725	6,505	57.3%	A/A
2020 · Presidential	4,698	6,691	70.2%	A/A
2022 · Midterm	3,427	7,020	48.8%	A/A
2024 · Presidential	4,552	6,944	65.6%	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 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 306/183.
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

7 precincts · 4,459 votes

Election

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

Clarke County precinct-level presidential election results for 2024

Precinct -NORTH PRECINCTNORTH PRECINCT	173	593	12	778	22.2%	76.2%	R+54.0
Precinct -MURRAY PRECINCTMURRAY PRECINCT	166	540	12	718	23.1%	75.2%	R+52.1
Precinct -OSCEOLA 3RD WARDOSCEOLA 3RD WARD	241	419	9	669	36.0%	62.6%	R+26.6
Precinct -OSCEOLA 1ST WARDOSCEOLA 1ST WARD	241	396	8	645	37.4%	61.4%	R+24.0
Precinct -OSCEOLA 2ND WARDOSCEOLA 2ND WARD	186	409	7	602	30.9%	67.9%	R+37.0
Precinct -WOODBURN PRECINCTWOODBURN PRECINCT	148	409	2	559	26.5%	73.2%	R+46.7
Precinct -MIDDLE PRECINCTMIDDLE PRECINCT	110	374	4	488	22.5%	76.6%	R+54.1

presidential history

Presidential margin, 1892–2024

Democratic minus Republican, by election

Presidential margin over time
Year	Margin (D minus R)
1892	−18.4%
1896	−4.0%
1900	−15.1%
1904	−32.4%
1908	−17.5%
1912	+1.1%
1916	−12.1%
1920	−42.5%
1924	−37.2%
1928	−25.3%
1932	+18.2%
1936	+0.8%
1940	−8.1%
1944	−14.3%
1948	−2.1%
1952	−31.9%
1956	−12.1%
1960	−15.9%
1964	+26.4%
1968	−10.1%
1972	−16.0%
1976	+14.4%
1980	−18.2%
1984	−5.4%
1988	+16.0%
1992	+11.8%
1996	+16.6%
2000	+2.3%
2004	+2.7%
2008	+2.3%
2012	+1.5%
2016	−27.7%
2020	−35.9%
2024	−41.9%

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	28.2%Harris1,265	70.1%Trump3,140	0.9%Kennedy40	R+41.9	R+5.9	R+40.4	4,479
2020	R	31.4%Biden1,466	67.3%Trump3,144	0.7%Jorgensen34	R+35.9	R+8.3	R+40.4	4,670
2016	R	32.5%Clinton1,465	60.2%Trump2,713	3.5%Johnson160	R+27.7	R+29.1	R+29.8	4,509
2012	D	49.4%Obama2,189	47.9%Romney2,124	0.9%Johnson38	D+1.5	R+0.8	R+2.4	4,430
2008	D	49.9%Obama2,218	47.7%McCain2,118	2.4%	D+2.3	R+0.4	R+5.0	4,443
2004	D	50.9%Kerry2,323	48.2%Bush2,200	0.9%	D+2.7	D+0.4	D+5.2	4,566
2000	D	49.8%Gore2,081	47.5%Bush1,984	1.8%Nader75	D+2.3	R+14.3	D+1.8	4,176
1996	D	52.3%Clinton2,053	35.7%Dole1,401	11.2%Perot440	D+16.6	D+4.8	D+8.1	3,923
1992	D	45.1%Clinton1,921	33.3%Bush1,417	21.1%Perot899	D+11.8	R+4.2	D+6.3	4,260
1988	D	57.5%Dukakis2,262	41.5%Bush1,631	1.0%	D+16.0	D+21.4	D+23.8	3,934
1984	R	47.0%Mondale2,030	52.3%Reagan2,262	0.7%	R+5.4	D+12.9	D+12.9	4,321
1980	R	36.6%Carter1,614	54.9%Reagan2,417	8.5%	R+18.2	R+32.6	R+8.5	4,404
1976	D	56.2%Carter2,333	41.9%Ford1,737	1.9%	D+14.4	D+30.4	D+12.3	4,149
1972	R	40.8%McGovern1,590	56.8%Nixon2,214	2.5%	R+16.0	R+5.9	D+7.2	3,901
1968	R	41.4%Humphrey1,655	51.5%Nixon2,059	7.1%	R+10.1	R+36.5	R+9.4	4,000
1964	D	63.1%Johnson2,659	36.7%Goldwater1,546	0.2%	D+26.4	D+42.4	D+3.8	4,212
1960	R	41.9%Kennedy1,906	57.8%Nixon2,631	0.3%	R+15.9	R+3.8	R+16.1	4,550
1956	R	43.9%Stevenson1,929	56.0%Eisenhower2,462	0.1%	R+12.1	D+19.8	D+3.3	4,397
1952	R	33.8%Stevenson1,653	65.7%Eisenhower3,215	0.5%	R+31.9	R+29.8	R+21.2	4,894
1948	R	48.0%Truman2,101	50.1%Dewey2,195	1.9%	R+2.1	D+12.2	R+6.6	4,379
1944	R	42.5%Roosevelt1,946	56.8%Dewey2,603	0.8%	R+14.3	R+6.2	R+21.8	4,584
1940	R	45.6%Roosevelt2,513	53.8%Willkie2,962	0.6%	R+8.1	R+8.9	R+18.1	5,510
1936	D	49.6%Roosevelt2,613	48.9%Landon2,571	1.5%	D+0.8	R+17.4	R+23.5	5,263
1932	D	58.1%Roosevelt2,342	39.9%Hoover1,608	2.0%	D+18.2	D+43.6	D+0.4	4,030
1928	R	36.6%Smith1,642	61.9%Hoover2,780	1.5%	R+25.3	D+11.9	R+7.9	4,490
1924	R	15.3%Davis743	52.5%Coolidge2,554	32.1%La Follette1,563	R+37.2	D+5.3	R+12.0	4,867
1920	R	28.2%Cox1,257	70.8%Harding3,150	1.0%	R+42.5	R+30.4	R+16.3	4,450
1916	R	43.0%Wilson1,175	55.1%Hughes1,507	1.9%	R+12.1	R+13.3	R+15.3	2,735
1912	D	36.6%Wilson910	35.4%Taft882	28.0%	D+1.1	D+18.6	R+18.4	2,489
1908	R	40.5%Bryan1,134	58.0%Taft1,624	1.5%	R+17.5	D+14.9	R+7.9	2,800
1904	R	32.2%Parker896	64.6%Roosevelt1,799	3.3%	R+32.4	R+17.4	R+12.7	2,786
1900	R	41.6%Bryan1,322	56.7%McKinley1,800	1.7%	R+15.1	R+11.0	R+7.5	3,175
1896	R	47.5%Bryan1,517	51.5%McKinley1,646	1.0%	R+4.0	D+14.4	D+2.0	3,194
1892	R	35.8%Cleveland961	54.2%Harrison1,455	10.1%	R+18.4	—	R+20.1	2,686
1888	—	—	—	—	No data	—	—	—
1884	—	—	—	—	No data	—	—	—
1880	—	—	—	—	No data	—	—	—
1876	—	—	—	—	No data	—	—	—

Federal and statewide elections · 3 House · 37 Senate · 2 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	R	31.4%1,375	68.6%3,001	4,376
2020	R	37.7%1,639	62.3%2,712	4,351
2018	R	44.0%1,525	56.0%1,939	3,464

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	30.1%1,005	69.9%2,332	3,337
2020Class II	R	33.0%Theresa Greenfield1,520	63.1%Joni Ernst2,906	4,605
2016Class III	R	29.0%Patty Judge1,273	66.2%Chuck Grassley2,903	4,385
2014Class II	R	36.6%Bruce Braley1,198	57.1%Joni Ernst1,865	3,269
2010Class III	R	28.2%Roxanne Conlin1,041	69.1%Chuck Grassley2,551	3,693
2008Class II	D	60.8%Tom Harkin2,680	39.2%Christopher Reed1,727	4,409
2004Class III	R	24.3%Arthur Small1,096	73.7%Chuck Grassley3,323	4,511
2002Class II	D	60.6%Tom Harkin2,269	37.0%Greg Ganske1,385	3,745
1998Class III	R	28.9%David Osterberg1,004	69.5%Chuck Grassley2,412	3,472
1996Class II	D	50.5%Tom Harkin1,972	48.5%Jim Ross Lightfoot1,896	3,908
1992Class III	R	27.9%Jean Lloyd-Jones1,179	68.1%Chuck Grassley2,875	4,222
1990Class II	D	65.1%Tom Harkin2,262	34.9%Tom Tauke1,212	3,477
1986Class III	R	31.4%John P. Roehrick1,044	67.9%Chuck Grassley2,254	3,320
1984Class II	D	62.6%Tom Harkin2,669	37.2%Roger W. Jepsen1,584	4,263
1980Class III	R	44.8%John C. Culver1,913	54.6%Chuck Grassley2,329	4,266
1978Class II	D	50.9%Dick Clark1,607	48.6%Roger W. Jepsen1,535	3,158
1974Class III	D	52.0%John C. Culver1,754	47.8%David M. Stanley1,612	3,371
1972Class II	D	53.7%Dick Clark2,073	45.8%Jack Miller1,770	3,863
1968Class III	R	47.1%Harold E. Hughes1,854	52.9%David M. Stanley2,086	3,940
1966Class II	R	40.1%E.B. Smith1,388	58.4%Jack Miller2,019	3,460
1962Class III	R	47.9%E.B. Smith1,621	52.1%Bourke Hickenlooper1,763	3,384
1960Class II	R	47.5%Herschel Loveless2,111	52.5%Jack Miller2,334	4,445
1956Class III	R	48.4%R.M. Evans2,026	51.6%Bourke Hickenlooper2,160	4,186
1954Class II	R	49.6%Guy M. Gillette1,687	50.2%Thomas E. Martin1,709	3,404
1950Class III	R	44.9%Albert J. Loveland1,636	54.7%Bourke Hickenlooper1,992	3,640
1948Class II	D	51.3%Guy M. Gillette2,122	48.2%George A. Wilson1,994	4,138
1944Class III	R	42.2%Guy M. Gillette1,877	57.3%Bourke Hickenlooper2,553	4,453
1942Class II	R	36.0%Clyde L. Herring1,226	63.7%George A. Wilson2,167	3,403
1938Class III	R	47.8%Guy M. Gillette1,833	51.9%Lester Dickinson1,991	3,838
1936Class II	R	46.4%Clyde L. Herring2,326	52.9%Lester Dickinson2,651	5,014
1932Class III	D	51.0%Richard L. Murphy1,977	44.4%Henry Field1,720	3,878
1930Class II	R	37.9%Daniel F. Steck1,248	61.7%Lester Dickinson2,033	3,294
1926Class III	R	34.2%Claude R. Porter1,265	65.8%Smith W. Brookhart2,434	3,701
1924Class II	R	34.9%Daniel F. Steck1,550	65.1%Smith W. Brookhart2,890	4,440
1920Class III	R	39.9%Claude R. Porter1,723	60.0%Albert B. Cummins2,589	4,317
1918Class II	R	34.3%Charles R. Keyes722	65.7%William S. Kenyon1,383	2,105
1914Class III	R	39.6%Maurice Connolly973	46.1%Albert B. Cummins1,133	2,458

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
1936Special · Class III	R	44.2%Guy M. Gillette2,099	55.2%Berry F. Halden2,621	4,745
1922Special · Class II	R	29.3%Clyde L. Herring1,041	70.7%Smith W. Brookhart2,517	3,558

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	24.3%Deidre Dejear824	73.6%Kim Reynolds2,494	3,389
2018	R	34.5%Fred Hubbell/Rita R Hart1,280	63.2%Kim Reynolds/Adam Gregg2,341	3,706
2014	R	32.1%Jack Hatch1,051	63.9%Terry Branstad2,092	3,273
2010	R	35.4%Chet Culver1,318	59.0%Terry Branstad2,195	3,723
2006	D	55.7%Chet Culver1,887	42.8%Jim Nussle1,449	3,386
2002	D	55.7%Tom Vilsack2,097	40.7%Doug Gross1,531	3,763
1998	R	48.4%Tom Vilsack1,687	50.3%Jim Ross Lightfoot1,754	3,488
1994	R	42.3%Bonnie Campbell1,422	56.7%Terry Branstad1,907	3,365
1990	R	42.3%Donald Avenson1,465	56.8%Terry Branstad1,966	3,461
1986	R	46.9%Lowell Junkins1,560	53.0%Terry Branstad1,764	3,329
1982	R	48.0%Roxanne Conlin1,754	51.0%Terry Branstad1,863	3,651
1978	D	51.8%Jerome D. Fitzgerald1,656	47.8%Robert D. Ray1,528	3,194

voter registration

Registered voters

By party of registration, over time

Party registration · 2024R+23.0

Presidential vote · 2024R+41.9

Registration leans Republican; the presidential vote runs 19 points more Democratic.

DemocraticRepublicanUnaffiliatedOther parties

Voter registration in Clarke County, IA
Year	Total registered	Democratic	Republican	Unaffiliated	Other
2008	6,265	2,036	1,701	2,526	2
2010	6,281	1,831	1,845	2,601	4
2012	6,367	1,811	1,953	2,599	4
2014	6,183	1,686	1,927	2,560	10
2016	6,113	1,663	1,976	2,452	22
2018	6,007	1,533	2,071	2,371	32
2020	6,241	1,581	2,455	2,148	57
2022	6,178	1,470	2,513	2,147	48
2024	6,236	1,309	2,742	2,114	71

domestic migration

Who moves in and out

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

−26 net domestic migration · 2025

20112025

Net −417 over 2011–2025 · gain loss

Arrivals reported $48,469 in average income, against $65,867 for residents who stayed — 26% lower. (IRS SOI, 2022–23)

The places arrivals came from lean R+9.8 on average — 32 points more Democratic-leaning than Clarke County, IA itself (R+41.9).

Where arrivals came from lean of each source

Polk County, IA54D+10.8
Decatur County, IA30R+46.9

Where departures went households, 2022–23

Polk County, IA53
Decatur County, IA36
Warren County, IA25

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 Clarke County, IA in Clarke County, IA: net domestic migration by year
Year	Net domestic migration
2011	−7
2012	+27
2013	−129
2014	−59
2015	−11
2016	+28
2017	+51
2018	+69
2019	−142
2021	+25
2022	−102
2023	−42
2024	−99
2025	−26

Clarke County's small-town and agricultural character has pushed its presidential margins steadily rightward over the past decade, hitting R+41.9 in 2024 — a spread that reflects broader rural Iowa's sharp partisan realignment.

Across the recorded series it reached a Democratic high of 26.4 points in 1964 and a Republican high of 42.5 points in 1920. Between 2020 and 2024 the county moved 5.9 points toward the Republican candidate; the 2024 margin was 41.9 points.

A population of 9,662, a 78% non-Hispanic-white share, and a median household income of $71,641 describe the county. The county's voting pattern over the last decade is most similar to that of Wapello County and Houston County.

Political twins — counties

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

Wapello County

Iowa

87.9twin score

12-yr trend2000–2012 trajectory

Houston County

Tennessee

80.0twin score

12-yr trend2004–2008 trajectorycollege share≠ 2000 margin

Monroe County

Ohio

79.7twin score

12-yr trend2000–2008 trajectory≠ median age

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 Clarke County

Osceola

R+29

5.5K residents

Iowa at the ballot boxAll elections →

Presidentcounty detail2024 US Senatestatewide2022 Governorstate + county2022 US Houseall districts2024

Frequently asked questions

How did Clarke County, Iowa vote in 2024?

In 2024, Clarke County, Iowa voted Republican by 41.9 points (R+41.9), carried by the Republican candidate. Out of 4,479 votes cast, 1,265 went Democratic and 3,140 went Republican.

When did Clarke County, Iowa last vote Democratic?

The most recent presidential election in which Clarke County, Iowa voted Democratic was 2012.

How many people live in Clarke County, Iowa?

Clarke County, Iowa has a population of 9,662 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.

What is the median household income in Clarke County, Iowa?

Median household income in Clarke County, Iowa is $71,641 — below the national median of $80,734. The Iowa state median is $75,059.

What is the political history of Clarke County, Iowa?

Akashic tracks 38 presidential elections in Clarke County, Iowa from 1876 to 2024. Of those, 12 went Democratic and 22 went Republican.

Measure

Clarke County

Iowa

United States

Median age

37.9

38.8

39.1

Age 18–24

9.0%

10.0%

9.2%

Age 65 and older

20.0%

18.1%

17.2%

Measure

Clarke County

Iowa

United States

Median household income

$71,641

$75,059

$84,427

Poverty rate

9.7%

11.1%

12.5%

Bachelor's degree or higher (25+)

16.0%

31.8%

35.6%

Measure

Clarke County

Iowa

United States

Speaks a non-English language at home

11.2%

9.2%

22.3%

Spanish

7.7%

4.7%

13.6%

German or other West Germanic

2.6%

0.6%

0.5%

Measure

Clarke County

Iowa

United States

Catholic

9.2%

14.7%

18.6%

Evangelical Protestant

20.9%

10.9%

16.5%

Unclaimed / not counted

57.3%

55.2%

51.5%

Mainline Protestant

10.5%

15.8%

5.2%

Key facts

2024 presidential margin

R+41.9MIT Election Lab

Population

9,6622024 5-year

Median household income

$71,6412024 5-year

White (non-Hispanic)

77.5%2024 5-year

Black

0.1%2024 5-year

Hispanic / Latino

16.8%2024 5-year

Peak Democratic margin

D+26.4 in 1964MIT Election Lab

Peak Republican margin

R+42.5 in 1920MIT Election Lab

Most similar

Wapello County, IA · twin score 87.9

Election

Participants

CVAP

Turnout

Quality

2016 · Presidential

4,509

6,637

67.9%

A/A

2018 · Midterm

3,725

6,505

57.3%

A/A

2020 · Presidential

4,698

6,691

70.2%

A/A

2022 · Midterm

3,427

7,020

48.8%

A/A

2024 · Presidential

4,552

6,944

65.6%

A/A

Clarke County precinct-level presidential election results for 2024

Precinct -NORTH PRECINCTNORTH PRECINCT

173

593

778

22.2%

76.2%

R+54.0

Precinct -MURRAY PRECINCTMURRAY PRECINCT

166

540

718

23.1%

75.2%

R+52.1

Precinct -OSCEOLA 3RD WARDOSCEOLA 3RD WARD

241

419

669

36.0%

62.6%

R+26.6

Precinct -OSCEOLA 1ST WARDOSCEOLA 1ST WARD

241

396

645

37.4%

61.4%

R+24.0

Precinct -OSCEOLA 2ND WARDOSCEOLA 2ND WARD

186

409

602

30.9%

67.9%

R+37.0

Precinct -WOODBURN PRECINCTWOODBURN PRECINCT

148

409

559

26.5%

73.2%

R+46.7

Precinct -MIDDLE PRECINCTMIDDLE PRECINCT

110

374

488

22.5%

76.6%

R+54.1

Presidential margin, 1892–2024

Democratic minus Republican, by election

Presidential margin over time
Year	Margin (D minus R)
1892	−18.4%
1896	−4.0%
1900	−15.1%
1904	−32.4%
1908	−17.5%
1912	+1.1%
1916	−12.1%
1920	−42.5%
1924	−37.2%
1928	−25.3%
1932	+18.2%
1936	+0.8%
1940	−8.1%
1944	−14.3%
1948	−2.1%
1952	−31.9%
1956	−12.1%
1960	−15.9%
1964	+26.4%
1968	−10.1%
1972	−16.0%
1976	+14.4%
1980	−18.2%
1984	−5.4%
1988	+16.0%
1992	+11.8%
1996	+16.6%
2000	+2.3%
2004	+2.7%
2008	+2.3%
2012	+1.5%
2016	−27.7%
2020	−35.9%
2024	−41.9%

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

28.2%Harris1,265

70.1%Trump3,140

0.9%Kennedy40

R+41.9

R+5.9

R+40.4

4,479

2020

31.4%Biden1,466

67.3%Trump3,144

0.7%Jorgensen34

R+35.9

R+8.3

R+40.4

4,670

2016

32.5%Clinton1,465

60.2%Trump2,713

3.5%Johnson160

R+27.7

R+29.1

R+29.8

4,509

2012

49.4%Obama2,189

47.9%Romney2,124

0.9%Johnson38

D+1.5

R+0.8

R+2.4

4,430

2008

49.9%Obama2,218

47.7%McCain2,118

2.4%

D+2.3

R+0.4

R+5.0

4,443

2004

50.9%Kerry2,323

48.2%Bush2,200

0.9%

D+2.7

D+0.4

D+5.2

4,566

2000

49.8%Gore2,081

47.5%Bush1,984

1.8%Nader75

D+2.3

R+14.3

D+1.8

4,176

1996

52.3%Clinton2,053

35.7%Dole1,401

11.2%Perot440

D+16.6

D+4.8

D+8.1

3,923

1992

45.1%Clinton1,921

33.3%Bush1,417

21.1%Perot899

D+11.8

R+4.2

D+6.3

4,260

1988

57.5%Dukakis2,262

41.5%Bush1,631

1.0%

D+16.0

D+21.4

D+23.8

3,934

1984

47.0%Mondale2,030

52.3%Reagan2,262

0.7%

R+5.4

D+12.9

4,321

1980

36.6%Carter1,614

54.9%Reagan2,417

8.5%

R+18.2

R+32.6

R+8.5

4,404

1976

56.2%Carter2,333

41.9%Ford1,737

1.9%

D+14.4

D+30.4

D+12.3

4,149

1972

40.8%McGovern1,590

56.8%Nixon2,214

2.5%

R+16.0

R+5.9

D+7.2

3,901

1968

41.4%Humphrey1,655

51.5%Nixon2,059

7.1%

R+10.1

R+36.5

R+9.4

4,000

1964

63.1%Johnson2,659

36.7%Goldwater1,546

0.2%

D+26.4

D+42.4

D+3.8

4,212

1960

41.9%Kennedy1,906

57.8%Nixon2,631

0.3%

R+15.9

R+3.8

R+16.1

4,550

1956

43.9%Stevenson1,929

56.0%Eisenhower2,462

0.1%

R+12.1

D+19.8

D+3.3

4,397

1952

33.8%Stevenson1,653

65.7%Eisenhower3,215

0.5%

R+31.9

R+29.8

R+21.2

4,894

1948

48.0%Truman2,101

50.1%Dewey2,195

1.9%

R+2.1

D+12.2

R+6.6

4,379

1944

42.5%Roosevelt1,946

56.8%Dewey2,603

0.8%

R+14.3

R+6.2

R+21.8

4,584

1940

45.6%Roosevelt2,513

53.8%Willkie2,962

0.6%

R+8.1

R+8.9

R+18.1

5,510

1936

49.6%Roosevelt2,613

48.9%Landon2,571

1.5%

D+0.8

R+17.4

R+23.5

5,263

1932

58.1%Roosevelt2,342

39.9%Hoover1,608

2.0%

D+18.2

D+43.6

D+0.4

4,030

1928

36.6%Smith1,642

61.9%Hoover2,780

1.5%

R+25.3

D+11.9

R+7.9

4,490

1924

15.3%Davis743

52.5%Coolidge2,554

32.1%La Follette1,563

R+37.2

D+5.3

R+12.0

4,867

1920

28.2%Cox1,257

70.8%Harding3,150

1.0%

R+42.5

R+30.4

R+16.3

4,450

1916

43.0%Wilson1,175

55.1%Hughes1,507

1.9%

R+12.1

R+13.3

R+15.3

2,735

1912

36.6%Wilson910

35.4%Taft882

28.0%

D+1.1

D+18.6

R+18.4

2,489

1908

40.5%Bryan1,134

58.0%Taft1,624

1.5%

R+17.5

D+14.9

R+7.9

2,800

1904

32.2%Parker896

64.6%Roosevelt1,799

3.3%

R+32.4

R+17.4

R+12.7

2,786

1900

41.6%Bryan1,322

56.7%McKinley1,800

1.7%

R+15.1

R+11.0

R+7.5

3,175

1896

47.5%Bryan1,517

51.5%McKinley1,646

1.0%

R+4.0

D+14.4

D+2.0

3,194

1892

35.8%Cleveland961

54.2%Harrison1,455

10.1%

R+18.4

—

R+20.1

2,686

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

31.4%1,375

68.6%3,001

4,376

2020

37.7%1,639

62.3%2,712

4,351

2018

44.0%1,525

56.0%1,939

3,464

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

30.1%1,005

69.9%2,332

3,337

2020Class II

33.0%Theresa Greenfield1,520

63.1%Joni Ernst2,906

4,605

2016Class III

29.0%Patty Judge1,273

66.2%Chuck Grassley2,903

4,385

2014Class II

36.6%Bruce Braley1,198

57.1%Joni Ernst1,865

3,269

2010Class III

28.2%Roxanne Conlin1,041

69.1%Chuck Grassley2,551

3,693

2008Class II

60.8%Tom Harkin2,680

39.2%Christopher Reed1,727

4,409

2004Class III

24.3%Arthur Small1,096

73.7%Chuck Grassley3,323

4,511

2002Class II

60.6%Tom Harkin2,269

37.0%Greg Ganske1,385

3,745

1998Class III

28.9%David Osterberg1,004

69.5%Chuck Grassley2,412

3,472

1996Class II

50.5%Tom Harkin1,972

48.5%Jim Ross Lightfoot1,896

3,908

1992Class III

27.9%Jean Lloyd-Jones1,179

68.1%Chuck Grassley2,875

4,222

1990Class II

65.1%Tom Harkin2,262

34.9%Tom Tauke1,212

3,477

1986Class III

31.4%John P. Roehrick1,044

67.9%Chuck Grassley2,254

3,320

1984Class II

62.6%Tom Harkin2,669

37.2%Roger W. Jepsen1,584

4,263

1980Class III

44.8%John C. Culver1,913

54.6%Chuck Grassley2,329

4,266

1978Class II

50.9%Dick Clark1,607

48.6%Roger W. Jepsen1,535

3,158

1974Class III

52.0%John C. Culver1,754

47.8%David M. Stanley1,612

3,371

1972Class II

53.7%Dick Clark2,073

45.8%Jack Miller1,770

3,863

1968Class III

47.1%Harold E. Hughes1,854

52.9%David M. Stanley2,086

3,940

1966Class II

40.1%E.B. Smith1,388

58.4%Jack Miller2,019

3,460

1962Class III

47.9%E.B. Smith1,621

52.1%Bourke Hickenlooper1,763

3,384

1960Class II

47.5%Herschel Loveless2,111

52.5%Jack Miller2,334

4,445

1956Class III

48.4%R.M. Evans2,026

51.6%Bourke Hickenlooper2,160

4,186

1954Class II

49.6%Guy M. Gillette1,687

50.2%Thomas E. Martin1,709

3,404

1950Class III

44.9%Albert J. Loveland1,636

54.7%Bourke Hickenlooper1,992

3,640

1948Class II

51.3%Guy M. Gillette2,122

48.2%George A. Wilson1,994

4,138

1944Class III

42.2%Guy M. Gillette1,877

57.3%Bourke Hickenlooper2,553

4,453

1942Class II

36.0%Clyde L. Herring1,226

63.7%George A. Wilson2,167

3,403

1938Class III

47.8%Guy M. Gillette1,833

51.9%Lester Dickinson1,991

3,838

1936Class II

46.4%Clyde L. Herring2,326

52.9%Lester Dickinson2,651

5,014

1932Class III

51.0%Richard L. Murphy1,977

44.4%Henry Field1,720

3,878

1930Class II

37.9%Daniel F. Steck1,248

61.7%Lester Dickinson2,033

3,294

1926Class III

34.2%Claude R. Porter1,265

65.8%Smith W. Brookhart2,434

3,701

1924Class II

34.9%Daniel F. Steck1,550

65.1%Smith W. Brookhart2,890

4,440

1920Class III

39.9%Claude R. Porter1,723

60.0%Albert B. Cummins2,589

4,317

1918Class II

34.3%Charles R. Keyes722

65.7%William S. Kenyon1,383

2,105

1914Class III

39.6%Maurice Connolly973

46.1%Albert B. Cummins1,133

2,458

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

Year

Vote lead

Democratic

Republican

Total

1936Special · Class III

44.2%Guy M. Gillette2,099

55.2%Berry F. Halden2,621

4,745

1922Special · Class II

29.3%Clyde L. Herring1,041

70.7%Smith W. Brookhart2,517

3,558

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

24.3%Deidre Dejear824

73.6%Kim Reynolds2,494

3,389

2018

34.5%Fred Hubbell/Rita R Hart1,280

63.2%Kim Reynolds/Adam Gregg2,341

3,706

2014

32.1%Jack Hatch1,051

63.9%Terry Branstad2,092

3,273

2010

35.4%Chet Culver1,318

59.0%Terry Branstad2,195

3,723

2006

55.7%Chet Culver1,887

42.8%Jim Nussle1,449

3,386

2002

55.7%Tom Vilsack2,097

40.7%Doug Gross1,531

3,763

1998

48.4%Tom Vilsack1,687

50.3%Jim Ross Lightfoot1,754

3,488

1994

42.3%Bonnie Campbell1,422

56.7%Terry Branstad1,907

3,365

1990

42.3%Donald Avenson1,465

56.8%Terry Branstad1,966

3,461

1986

46.9%Lowell Junkins1,560

53.0%Terry Branstad1,764

3,329

1982

48.0%Roxanne Conlin1,754

51.0%Terry Branstad1,863

3,651

1978

51.8%Jerome D. Fitzgerald1,656

47.8%Robert D. Ray1,528

3,194

Frequently asked questions

How did Clarke County, Iowa vote in 2024?

In 2024, Clarke County, Iowa voted Republican by 41.9 points (R+41.9), carried by the Republican candidate. Out of 4,479 votes cast, 1,265 went Democratic and 3,140 went Republican.

When did Clarke County, Iowa last vote Democratic?

The most recent presidential election in which Clarke County, Iowa voted Democratic was 2012.

How many people live in Clarke County, Iowa?

Clarke County, Iowa has a population of 9,662 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.

What is the median household income in Clarke County, Iowa?

Median household income in Clarke County, Iowa is $71,641 — below the national median of $80,734. The Iowa state median is $75,059.

What is the political history of Clarke County, Iowa?

Akashic tracks 38 presidential elections in Clarke County, Iowa from 1876 to 2024. Of those, 12 went Democratic and 22 went Republican.