Akashic

county

Jackson 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

German40.4%30.5%12.5%

Irish15.3%12.8%9.4%

English6.6%10.2%9.5%

American5.4%4.6%5.3%

Polish2.6%—2.2%

Italian1.2%1.6%4.8%

Scottish1.1%—1.3%

Norwegian1.1%4.1%—

Mexican0.8%5.0%11.3%

Cuban0.7%—0.7%

African American†1.0%2.6%9.9%

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	Jackson County	Iowa	United States
Median age	44.7	38.8	39.1
Age 18–24	6.6%	10.0%	9.2%
Age 65 and older	22.2%	18.1%	17.2%

Household economy

Measure	Jackson County	Iowa	United States
Median household income	$74,186	$75,059	$84,427
Poverty rate	9.7%	11.1%	12.5%
Bachelor's degree or higher (25+)	19.5%	31.8%	35.6%

Languages at home

Measure	Jackson County	Iowa	United States
Speaks a non-English language at home	2.9%	9.2%	22.3%
Spanish	1.1%	4.7%	13.6%
German or other West Germanic	1.0%	0.6%	0.5%

Religious landscape

Measure	Jackson County	Iowa	United States
Catholic	28.3%	14.7%	18.6%
Evangelical Protestant	2.6%	10.9%	16.5%
Unclaimed / not counted	47.6%	55.2%	51.5%
Mainline Protestant	20.7%	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 72.4% of 14,994 citizens 18+

HarrisDemocratic33.0%3,567TrumpRepublican65.5%7,074KennedyWe The People0.9%94

R+32.5

Lead: 3,507
Total: 10,801
vs nation: R+31.0
Turnout: 72.4%

BidenDemocratic36.2%4,029TrumpRepublican62.3%6,940JorgensenLibertarian0.7%79

R+26.1

Lead: 2,911
Total: 11,135
vs nation: R+30.6
Turnout: 74.8%

ClintonDemocratic36.5%3,837TrumpRepublican55.4%5,824JohnsonLibertarian3.0%319

R+18.9

Lead: 1,987
Total: 10,504
vs nation: R+21.0
Turnout: 69.4%

ObamaDemocratic57.7%5,907RomneyRepublican40.8%4,177GrayLibertarian0.7%67

D+16.9

Lead: 1,730
Total: 10,242
vs nation: D+13.0
Turnout: —

ObamaDemocratic61.3%6,102McCainRepublican36.9%3,673OtherAll other candidates1.8%180

D+24.4

Lead: 2,429
Total: 9,955
vs nation: D+17.1
Turnout: —

KerryDemocratic56.5%5,656BushRepublican42.4%4,242OtherAll other candidates1.1%113

D+14.1

Lead: 1,414
Total: 10,011
vs nation: D+16.6
Turnout: —

GoreDemocratic54.7%4,945BushRepublican41.7%3,769NaderGreen2.5%227

D+13.0

Lead: 1,176
Total: 9,032
vs nation: D+12.5
Turnout: —

ClintonDemocratic54.5%4,609DoleRepublican33.4%2,827PerotReform11.1%936

D+21.1

Lead: 1,782
Total: 8,461
vs nation: D+12.5
Turnout: —

Key facts

2024 presidential margin: R+32.5MIT Election Lab
Population: 19,3902024 5-year
Median household income: $74,1862024 5-year
White (non-Hispanic): 93.6%2024 5-year
Black: 1.0%2024 5-year
Hispanic / Latino: 1.6%2024 5-year
Peak Democratic margin: D+25.9 in 1932MIT Election Lab
Peak Republican margin: R+40.1 in 1920MIT Election Lab
Most similar: Buchanan County, IA · twin score 95.2

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: 72.4%10,849 participants ÷ 14,994 CVAP
2020→2022 drop-off: +22.8 ptsPresidential-dependent
Drop-off versus state: +1.9 ptsPositive means a larger decline than the statewide pattern
Mechanical 2026 scenario: 49.5%–55.3%Recent-cycle and two-cycle persistence scenarios; not a forecast

Election	Participants	CVAP	Turnout	Quality
2016 · Presidential	10,504	15,128	69.4%	A/A
2018 · Midterm	8,731	15,012	58.2%	A/A
2020 · Presidential	11,227	15,003	74.8%	A/A
2022 · Midterm	7,853	15,105	52.0%	A/A
2024 · Presidential	10,849	14,994	72.4%	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

13 precincts · 10,782 votes

Election

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

Jackson County precinct-level presidential election results for 2024

Precinct -Pct 1Pct 1	659	1,083	21	1,763	37.4%	61.4%	R+24.0
Precinct -Pct 7Pct 7	336	1,124	14	1,474	22.8%	76.3%	R+53.5
Precinct -Pct 2Pct 2	375	877	15	1,267	29.6%	69.2%	R+39.6
Precinct -Pct 6Pct 6	381	833	10	1,224	31.1%	68.1%	R+36.9
Precinct -Pct 3Pct 3	250	515	10	775	32.3%	66.5%	R+34.2
Precinct -Pct 13Pct 13	312	415	12	739	42.2%	56.2%	R+13.9
Precinct -Pct 4Pct 4	188	474	10	672	28.0%	70.5%	R+42.6
Precinct -Pct 12Pct 12	255	347	9	611	41.7%	56.8%	R+15.1
Precinct -Pct 9Pct 9	208	292	7	507	41.0%	57.6%	R+16.6
Precinct -Pct 10Pct 10	200	267	12	479	41.8%	55.7%	R+14.0
Precinct -Pct 11Pct 11	184	278	9	471	39.1%	59.0%	R+20.0
Precinct -Pct 5Pct 5	114	298	6	418	27.3%	71.3%	R+44.0
Precinct -Pct 8Pct 8	105	271	6	382	27.5%	70.9%	R+43.5

presidential history

Presidential margin, 1892–2024

Democratic minus Republican, by election

Presidential margin over time
Year	Margin (D minus R)
1892	+20.4%
1896	−6.1%
1900	−1.9%
1904	−7.5%
1908	+0.1%
1912	+22.6%
1916	−7.2%
1920	−40.1%
1924	−22.2%
1928	−11.9%
1932	+25.9%
1936	+14.8%
1940	−12.4%
1944	−10.2%
1948	−4.8%
1952	−30.6%
1956	−26.9%
1960	−7.8%
1964	+25.2%
1968	−13.1%
1972	−14.2%
1976	+2.8%
1980	−11.0%
1984	−4.4%
1988	+19.8%
1992	+18.8%
1996	+21.1%
2000	+13.0%
2004	+14.1%
2008	+24.4%
2012	+16.9%
2016	−18.9%
2020	−26.1%
2024	−32.5%

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	33.0%Harris3,567	65.5%Trump7,074	0.9%Kennedy94	R+32.5	R+6.3	R+31.0	10,801
2020	R	36.2%Biden4,029	62.3%Trump6,940	0.7%Jorgensen79	R+26.1	R+7.2	R+30.6	11,135
2016	R	36.5%Clinton3,837	55.4%Trump5,824	3.0%Johnson319	R+18.9	R+35.8	R+21.0	10,504
2012	D	57.7%Obama5,907	40.8%Romney4,177	0.7%Gray67	D+16.9	R+7.5	D+13.0	10,242
2008	D	61.3%Obama6,102	36.9%McCain3,673	1.8%	D+24.4	D+10.3	D+17.1	9,955
2004	D	56.5%Kerry5,656	42.4%Bush4,242	1.1%	D+14.1	D+1.1	D+16.6	10,011
2000	D	54.7%Gore4,945	41.7%Bush3,769	2.5%Nader227	D+13.0	R+8.0	D+12.5	9,032
1996	D	54.5%Clinton4,609	33.4%Dole2,827	11.1%Perot936	D+21.1	D+2.3	D+12.5	8,461
1992	D	47.5%Clinton4,421	28.7%Bush2,673	22.5%Perot2,096	D+18.8	R+1.0	D+13.2	9,305
1988	D	59.1%Dukakis4,864	39.3%Bush3,237	1.6%	D+19.8	D+24.2	D+27.5	8,233
1984	R	47.1%Mondale4,400	51.5%Reagan4,811	1.4%	R+4.4	D+6.6	D+13.8	9,340
1980	R	40.2%Carter3,518	51.2%Reagan4,479	8.6%	R+11.0	R+13.7	R+1.2	8,754
1976	D	50.3%Carter4,467	47.5%Ford4,221	2.2%	D+2.8	D+17.0	D+0.7	8,886
1972	R	41.5%McGovern3,704	55.7%Nixon4,975	2.7%	R+14.2	R+1.1	D+8.9	8,924
1968	R	39.9%Humphrey3,413	53.0%Nixon4,535	7.1%	R+13.1	R+38.3	R+12.4	8,553
1964	D	62.5%Johnson5,130	37.4%Goldwater3,066	0.1%	D+25.2	D+33.0	D+2.6	8,205
1960	R	46.1%Kennedy4,345	53.9%Nixon5,084	0.1%	R+7.8	D+19.1	R+8.0	9,434
1956	R	35.7%Stevenson3,181	62.6%Eisenhower5,575	1.7%	R+26.9	D+3.7	R+11.5	8,905
1952	R	33.7%Stevenson3,074	64.3%Eisenhower5,867	2.0%	R+30.6	R+25.8	R+19.8	9,127
1948	R	46.6%Truman3,263	51.3%Dewey3,597	2.1%	R+4.8	D+5.4	R+9.3	7,005
1944	R	44.9%Roosevelt3,537	55.0%Dewey4,341	0.1%	R+10.2	D+2.2	R+17.7	7,886
1940	R	43.7%Roosevelt4,218	56.1%Willkie5,417	0.3%	R+12.4	R+27.2	R+22.4	9,661
1936	D	55.4%Roosevelt4,889	40.6%Landon3,581	4.0%	D+14.8	R+11.1	R+9.4	8,823
1932	D	59.9%Roosevelt5,094	34.0%Hoover2,892	6.0%	D+25.9	D+37.8	D+8.1	8,499
1928	R	43.8%Smith3,729	55.7%Hoover4,740	0.4%	R+11.9	D+10.3	D+5.6	8,506
1924	R	28.0%Davis2,352	50.2%Coolidge4,218	20.9%La Follette1,755	R+22.2	D+17.9	D+3.0	8,403
1920	R	27.9%Cox1,954	68.0%Harding4,763	4.1%	R+40.1	R+32.9	R+13.9	7,005
1916	R	45.4%Wilson2,186	52.6%Hughes2,533	2.0%	R+7.2	R+29.8	R+10.4	4,813
1912	D	47.1%Wilson2,259	24.5%Taft1,174	28.5%	D+22.6	D+22.5	D+3.1	4,800
1908	D	48.6%Bryan2,545	48.5%Taft2,542	2.9%	D+0.1	D+7.6	D+9.6	5,240
1904	R	44.8%Parker2,483	52.3%Roosevelt2,899	2.9%	R+7.5	R+5.6	D+12.2	5,540
1900	R	48.8%Bryan2,854	50.7%McKinley2,964	0.6%	R+1.9	D+4.3	D+5.7	5,851
1896	R	46.4%Bryan3,279	52.5%McKinley3,713	1.2%	R+6.1	R+26.5	R+0.1	7,074
1892	D	59.2%Cleveland2,966	38.9%Harrison1,946	1.9%	D+20.4	—	D+18.7	5,009
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	41.8%4,332	58.2%6,021	10,353
2020	R	41.1%4,340	58.9%6,225	10,565
2018	R	45.9%3,797	54.1%4,483	8,280

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	36.9%2,816	63.1%4,816	7,632
2020Class II	R	39.0%Theresa Greenfield4,249	56.6%Joni Ernst6,175	10,908
2016Class III	R	34.3%Patty Judge3,450	62.5%Chuck Grassley6,283	10,057
2014Class II	R	44.4%Bruce Braley3,382	49.5%Joni Ernst3,771	7,624
2010Class III	R	35.2%Roxanne Conlin2,605	61.7%Chuck Grassley4,561	7,392
2008Class II	D	70.9%Tom Harkin6,871	29.0%Christopher Reed2,813	9,686
2004Class III	R	30.0%Arthur Small2,890	68.4%Chuck Grassley6,592	9,640
2002Class II	D	58.6%Tom Harkin3,753	39.5%Greg Ganske2,531	6,401
1998Class III	R	30.8%David Osterberg1,946	68.5%Chuck Grassley4,330	6,325
1996Class II	D	56.0%Tom Harkin4,628	42.0%Jim Ross Lightfoot3,468	8,261
1992Class III	R	25.6%Jean Lloyd-Jones2,152	72.0%Chuck Grassley6,041	8,395
1990Class II	R	45.4%Tom Harkin3,309	54.6%Tom Tauke3,982	7,296
1986Class III	R	29.3%John P. Roehrick1,831	70.5%Chuck Grassley4,404	6,250
1984Class II	D	55.4%Tom Harkin4,971	43.5%Roger W. Jepsen3,898	8,968
1980Class III	R	45.2%John C. Culver3,806	53.6%Chuck Grassley4,515	8,426
1978Class II	R	48.8%Dick Clark3,051	50.4%Roger W. Jepsen3,152	6,253
1974Class III	D	60.2%John C. Culver3,757	39.4%David M. Stanley2,460	6,246
1972Class II	D	59.9%Dick Clark5,089	38.4%Jack Miller3,265	8,499
1968Class III	D	54.1%Harold E. Hughes4,394	45.8%David M. Stanley3,720	8,128
1966Class II	R	35.3%E.B. Smith2,039	63.8%Jack Miller3,686	5,777
1962Class III	R	43.8%E.B. Smith2,335	56.2%Bourke Hickenlooper2,995	5,330
1960Class II	R	48.0%Herschel Loveless4,283	52.0%Jack Miller4,644	8,927
1956Class III	R	42.6%R.M. Evans3,457	57.4%Bourke Hickenlooper4,666	8,123
1954Class II	R	44.6%Guy M. Gillette2,920	55.2%Thomas E. Martin3,619	6,554
1950Class III	R	41.3%Albert J. Loveland2,855	58.4%Bourke Hickenlooper4,036	6,913
1948Class II	D	51.1%Guy M. Gillette3,436	48.5%George A. Wilson3,257	6,719
1944Class III	R	46.3%Guy M. Gillette3,484	53.7%Bourke Hickenlooper4,041	7,528
1942Class II	R	47.9%Clyde L. Herring3,027	51.9%George A. Wilson3,280	6,320
1938Class III	D	53.6%Guy M. Gillette3,896	46.0%Lester Dickinson3,345	7,264
1936Class II	D	53.3%Clyde L. Herring4,448	42.2%Lester Dickinson3,523	8,339
1932Class III	D	62.9%Richard L. Murphy4,721	35.3%Henry Field2,650	7,511
1930Class II	D	52.9%Daniel F. Steck3,041	46.8%Lester Dickinson2,686	5,745
1926Class III	R	49.1%Claude R. Porter3,025	50.7%Smith W. Brookhart3,128	6,167
1924Class II	D	53.7%Daniel F. Steck3,843	46.3%Smith W. Brookhart3,316	7,159
1920Class III	R	35.0%Claude R. Porter2,250	63.8%Albert B. Cummins4,103	6,429
1918Class II	R	40.9%Charles R. Keyes1,422	59.1%William S. Kenyon2,053	3,475
1914Class III	D	49.0%Maurice Connolly2,002	41.5%Albert B. Cummins1,697	4,087

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	D	53.5%Guy M. Gillette4,301	42.5%Berry F. Halden3,416	8,038
1922Special · Class II	R	43.5%Clyde L. Herring2,195	56.5%Smith W. Brookhart2,847	5,042

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	29.3%Deidre Dejear2,278	67.6%Kim Reynolds5,260	7,781
2018	R	41.7%Fred Hubbell/Rita R Hart3,582	55.2%Kim Reynolds/Adam Gregg4,744	8,587
2014	R	32.3%Jack Hatch2,471	65.3%Terry Branstad4,986	7,640
2010	R	46.2%Chet Culver3,451	50.4%Terry Branstad3,770	7,476
2006	D	63.5%Chet Culver4,596	35.3%Jim Nussle2,558	7,238
2002	D	54.2%Tom Vilsack3,449	43.7%Doug Gross2,776	6,358
1998	D	56.4%Tom Vilsack3,602	42.6%Jim Ross Lightfoot2,719	6,383
1994	R	41.1%Bonnie Campbell2,760	58.0%Terry Branstad3,893	6,713
1990	R	35.2%Donald Avenson2,576	63.8%Terry Branstad4,669	7,323
1986	R	48.4%Lowell Junkins3,181	51.6%Terry Branstad3,394	6,576
1982	R	39.7%Roxanne Conlin2,928	59.8%Terry Branstad4,408	7,367
1978	R	37.5%Jerome D. Fitzgerald2,391	61.9%Robert D. Ray3,947	6,376

voter registration

Registered voters

By party of registration, over time

Party registration · 2024R+9.5

Presidential vote · 2024R+32.5

Registration leans Republican; the presidential vote runs 23 points more Democratic.

DemocraticRepublicanUnaffiliatedOther parties

Voter registration in Jackson County, IA
Year	Total registered	Democratic	Republican	Unaffiliated	Other
2008	14,952	6,644	2,615	5,685	8
2010	15,234	6,707	2,700	5,816	11
2012	15,352	6,213	2,854	6,269	16
2014	14,979	5,725	2,986	6,250	18
2016	15,007	5,400	3,372	6,199	36
2018	14,835	5,077	3,262	6,454	42
2020	14,927	5,322	4,273	5,277	55
2022	14,739	4,692	4,609	5,380	58
2024	14,735	3,945	5,346	5,369	75

domestic migration

Who moves in and out

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

−37 net domestic migration · 2025

20112025

Net −315 over 2011–2025 · gain loss

Arrivals reported $52,824 in average income, against $83,030 for residents who stayed — 36% lower. (IRS SOI, 2022–23)

The places arrivals came from lean R+12.6 on average — 20 points more Democratic-leaning than Jackson County, IA itself (R+32.5).

Where arrivals came from lean of each source

Dubuque County, IA96R+8.6
Clinton County, IA94R+18.8
Scott County, IA22R+3.9

Where departures went households, 2022–23

Dubuque County, IA89
Clinton County, IA80
Scott County, IA38
Linn County, IA23

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 Jackson County, IA in Jackson County, IA: net domestic migration by year
Year	Net domestic migration
2011	−65
2012	−14
2013	−143
2014	−85
2015	−30
2016	+2
2017	−42
2018	+63
2019	+20
2021	+1
2022	−15
2023	+4
2024	+26
2025	−37

Jackson County's working-class river towns and agricultural hinterland have tracked a steady rightward shift over 15 years, with the 2024 presidential margin reaching R+32.5 — roughly double what it recorded in the early Obama era.

Across the recorded series it reached a Democratic high of 25.9 points in 1932 and a Republican high of 40.1 points in 1920. Between 2020 and 2024 the county moved 6.3 points toward the Republican candidate; the 2024 margin was 32.5 points.

A population of 19,390, a 94% non-Hispanic-white share, and a median household income of $74,186 describe the county. The county's voting pattern over the last decade is most similar to that of Buchanan County and Floyd County.

Political twins — counties

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

Buchanan County

Iowa

95.2twin score

12-yr trend2000–2012 trajectory≠ English ancestry

Floyd County

Iowa

94.1twin score

12-yr trend2000–2012 trajectory≠ Norwegian ancestry

Chickasaw County

Iowa

94.0twin score

12-yr trend2004–2012 trajectory≠ % unaffiliated

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.

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Cities & towns in Jackson County

Maquoketa

R+16

6.1K residents

Iowa at the ballot boxAll elections →

Presidentcounty detail2024 US Senatestatewide2022 Governorstate + county2022 US Houseall districts2024

Frequently asked questions

How did Jackson County, Iowa vote in 2024?

In 2024, Jackson County, Iowa voted Republican by 32.5 points (R+32.5), carried by the Republican candidate. Out of 10,801 votes cast, 3,567 went Democratic and 7,074 went Republican.

When did Jackson County, Iowa last vote Democratic?

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

How many people live in Jackson County, Iowa?

Jackson County, Iowa has a population of 19,390 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.

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

Median household income in Jackson County, Iowa is $74,186 — below the national median of $80,734. The Iowa state median is $75,059.

What is the political history of Jackson County, Iowa?

Akashic tracks 38 presidential elections in Jackson County, Iowa from 1876 to 2024. Of those, 14 went Democratic and 20 went Republican.

Measure

Jackson County

Iowa

United States

Median age

44.7

38.8

39.1

Age 18–24

6.6%

10.0%

9.2%

Age 65 and older

22.2%

18.1%

17.2%

Measure

Jackson County

Iowa

United States

Median household income

$74,186

$75,059

$84,427

Poverty rate

9.7%

11.1%

12.5%

Bachelor's degree or higher (25+)

19.5%

31.8%

35.6%

Measure

Jackson County

Iowa

United States

Speaks a non-English language at home

2.9%

9.2%

22.3%

Spanish

1.1%

4.7%

13.6%

German or other West Germanic

1.0%

0.6%

0.5%

Measure

Jackson County

Iowa

United States

Catholic

28.3%

14.7%

18.6%

Evangelical Protestant

2.6%

10.9%

16.5%

Unclaimed / not counted

47.6%

55.2%

51.5%

Mainline Protestant

20.7%

15.8%

5.2%

Key facts

2024 presidential margin

R+32.5MIT Election Lab

Population

19,3902024 5-year

Median household income

$74,1862024 5-year

White (non-Hispanic)

93.6%2024 5-year

Black

1.0%2024 5-year

Hispanic / Latino

1.6%2024 5-year

Peak Democratic margin

D+25.9 in 1932MIT Election Lab

Peak Republican margin

R+40.1 in 1920MIT Election Lab

Most similar

Buchanan County, IA · twin score 95.2

Election

Participants

CVAP

Turnout

Quality

2016 · Presidential

10,504

15,128

69.4%

A/A

2018 · Midterm

8,731

15,012

58.2%

A/A

2020 · Presidential

11,227

15,003

74.8%

A/A

2022 · Midterm

7,853

15,105

52.0%

A/A

2024 · Presidential

10,849

14,994

72.4%

A/A

Jackson County precinct-level presidential election results for 2024

Precinct -Pct 1Pct 1

659

1,083

1,763

37.4%

61.4%

R+24.0

Precinct -Pct 7Pct 7

336

1,124

1,474

22.8%

76.3%

R+53.5

Precinct -Pct 2Pct 2

375

877

1,267

29.6%

69.2%

R+39.6

Precinct -Pct 6Pct 6

381

833

1,224

31.1%

68.1%

R+36.9

Precinct -Pct 3Pct 3

250

515

775

32.3%

66.5%

R+34.2

Precinct -Pct 13Pct 13

312

415

739

42.2%

56.2%

R+13.9

Precinct -Pct 4Pct 4

188

474

672

28.0%

70.5%

R+42.6

Precinct -Pct 12Pct 12

255

347

611

41.7%

56.8%

R+15.1

Precinct -Pct 9Pct 9

208

292

507

41.0%

57.6%

R+16.6

Precinct -Pct 10Pct 10

200

267

479

41.8%

55.7%

R+14.0

Precinct -Pct 11Pct 11

184

278

471

39.1%

59.0%

R+20.0

Precinct -Pct 5Pct 5

114

298

418

27.3%

71.3%

R+44.0

Precinct -Pct 8Pct 8

105

271

382

27.5%

70.9%

R+43.5

Presidential margin, 1892–2024

Democratic minus Republican, by election

Presidential margin over time
Year	Margin (D minus R)
1892	+20.4%
1896	−6.1%
1900	−1.9%
1904	−7.5%
1908	+0.1%
1912	+22.6%
1916	−7.2%
1920	−40.1%
1924	−22.2%
1928	−11.9%
1932	+25.9%
1936	+14.8%
1940	−12.4%
1944	−10.2%
1948	−4.8%
1952	−30.6%
1956	−26.9%
1960	−7.8%
1964	+25.2%
1968	−13.1%
1972	−14.2%
1976	+2.8%
1980	−11.0%
1984	−4.4%
1988	+19.8%
1992	+18.8%
1996	+21.1%
2000	+13.0%
2004	+14.1%
2008	+24.4%
2012	+16.9%
2016	−18.9%
2020	−26.1%
2024	−32.5%

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

33.0%Harris3,567

65.5%Trump7,074

0.9%Kennedy94

R+32.5

R+6.3

R+31.0

10,801

2020

36.2%Biden4,029

62.3%Trump6,940

0.7%Jorgensen79

R+26.1

R+7.2

R+30.6

11,135

2016

36.5%Clinton3,837

55.4%Trump5,824

3.0%Johnson319

R+18.9

R+35.8

R+21.0

10,504

2012

57.7%Obama5,907

40.8%Romney4,177

0.7%Gray67

D+16.9

R+7.5

D+13.0

10,242

2008

61.3%Obama6,102

36.9%McCain3,673

1.8%

D+24.4

D+10.3

D+17.1

9,955

2004

56.5%Kerry5,656

42.4%Bush4,242

1.1%

D+14.1

D+1.1

D+16.6

10,011

2000

54.7%Gore4,945

41.7%Bush3,769

2.5%Nader227

D+13.0

R+8.0

D+12.5

9,032

1996

54.5%Clinton4,609

33.4%Dole2,827

11.1%Perot936

D+21.1

D+2.3

D+12.5

8,461

1992

47.5%Clinton4,421

28.7%Bush2,673

22.5%Perot2,096

D+18.8

R+1.0

D+13.2

9,305

1988

59.1%Dukakis4,864

39.3%Bush3,237

1.6%

D+19.8

D+24.2

D+27.5

8,233

1984

47.1%Mondale4,400

51.5%Reagan4,811

1.4%

R+4.4

D+6.6

D+13.8

9,340

1980

40.2%Carter3,518

51.2%Reagan4,479

8.6%

R+11.0

R+13.7

R+1.2

8,754

1976

50.3%Carter4,467

47.5%Ford4,221

2.2%

D+2.8

D+17.0

D+0.7

8,886

1972

41.5%McGovern3,704

55.7%Nixon4,975

2.7%

R+14.2

R+1.1

D+8.9

8,924

1968

39.9%Humphrey3,413

53.0%Nixon4,535

7.1%

R+13.1

R+38.3

R+12.4

8,553

1964

62.5%Johnson5,130

37.4%Goldwater3,066

0.1%

D+25.2

D+33.0

D+2.6

8,205

1960

46.1%Kennedy4,345

53.9%Nixon5,084

0.1%

R+7.8

D+19.1

R+8.0

9,434

1956

35.7%Stevenson3,181

62.6%Eisenhower5,575

1.7%

R+26.9

D+3.7

R+11.5

8,905

1952

33.7%Stevenson3,074

64.3%Eisenhower5,867

2.0%

R+30.6

R+25.8

R+19.8

9,127

1948

46.6%Truman3,263

51.3%Dewey3,597

2.1%

R+4.8

D+5.4

R+9.3

7,005

1944

44.9%Roosevelt3,537

55.0%Dewey4,341

0.1%

R+10.2

D+2.2

R+17.7

7,886

1940

43.7%Roosevelt4,218

56.1%Willkie5,417

0.3%

R+12.4

R+27.2

R+22.4

9,661

1936

55.4%Roosevelt4,889

40.6%Landon3,581

4.0%

D+14.8

R+11.1

R+9.4

8,823

1932

59.9%Roosevelt5,094

34.0%Hoover2,892

6.0%

D+25.9

D+37.8

D+8.1

8,499

1928

43.8%Smith3,729

55.7%Hoover4,740

0.4%

R+11.9

D+10.3

D+5.6

8,506

1924

28.0%Davis2,352

50.2%Coolidge4,218

20.9%La Follette1,755

R+22.2

D+17.9

D+3.0

8,403

1920

27.9%Cox1,954

68.0%Harding4,763

4.1%

R+40.1

R+32.9

R+13.9

7,005

1916

45.4%Wilson2,186

52.6%Hughes2,533

2.0%

R+7.2

R+29.8

R+10.4

4,813

1912

47.1%Wilson2,259

24.5%Taft1,174

28.5%

D+22.6

D+22.5

D+3.1

4,800

1908

48.6%Bryan2,545

48.5%Taft2,542

2.9%

D+0.1

D+7.6

D+9.6

5,240

1904

44.8%Parker2,483

52.3%Roosevelt2,899

2.9%

R+7.5

R+5.6

D+12.2

5,540

1900

48.8%Bryan2,854

50.7%McKinley2,964

0.6%

R+1.9

D+4.3

D+5.7

5,851

1896

46.4%Bryan3,279

52.5%McKinley3,713

1.2%

R+6.1

R+26.5

R+0.1

7,074

1892

59.2%Cleveland2,966

38.9%Harrison1,946

1.9%

D+20.4

—

D+18.7

5,009

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

41.8%4,332

58.2%6,021

10,353

2020

41.1%4,340

58.9%6,225

10,565

2018

45.9%3,797

54.1%4,483

8,280

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

36.9%2,816

63.1%4,816

7,632

2020Class II

39.0%Theresa Greenfield4,249

56.6%Joni Ernst6,175

10,908

2016Class III

34.3%Patty Judge3,450

62.5%Chuck Grassley6,283

10,057

2014Class II

44.4%Bruce Braley3,382

49.5%Joni Ernst3,771

7,624

2010Class III

35.2%Roxanne Conlin2,605

61.7%Chuck Grassley4,561

7,392

2008Class II

70.9%Tom Harkin6,871

29.0%Christopher Reed2,813

9,686

2004Class III

30.0%Arthur Small2,890

68.4%Chuck Grassley6,592

9,640

2002Class II

58.6%Tom Harkin3,753

39.5%Greg Ganske2,531

6,401

1998Class III

30.8%David Osterberg1,946

68.5%Chuck Grassley4,330

6,325

1996Class II

56.0%Tom Harkin4,628

42.0%Jim Ross Lightfoot3,468

8,261

1992Class III

25.6%Jean Lloyd-Jones2,152

72.0%Chuck Grassley6,041

8,395

1990Class II

45.4%Tom Harkin3,309

54.6%Tom Tauke3,982

7,296

1986Class III

29.3%John P. Roehrick1,831

70.5%Chuck Grassley4,404

6,250

1984Class II

55.4%Tom Harkin4,971

43.5%Roger W. Jepsen3,898

8,968

1980Class III

45.2%John C. Culver3,806

53.6%Chuck Grassley4,515

8,426

1978Class II

48.8%Dick Clark3,051

50.4%Roger W. Jepsen3,152

6,253

1974Class III

60.2%John C. Culver3,757

39.4%David M. Stanley2,460

6,246

1972Class II

59.9%Dick Clark5,089

38.4%Jack Miller3,265

8,499

1968Class III

54.1%Harold E. Hughes4,394

45.8%David M. Stanley3,720

8,128

1966Class II

35.3%E.B. Smith2,039

63.8%Jack Miller3,686

5,777

1962Class III

43.8%E.B. Smith2,335

56.2%Bourke Hickenlooper2,995

5,330

1960Class II

48.0%Herschel Loveless4,283

52.0%Jack Miller4,644

8,927

1956Class III

42.6%R.M. Evans3,457

57.4%Bourke Hickenlooper4,666

8,123

1954Class II

44.6%Guy M. Gillette2,920

55.2%Thomas E. Martin3,619

6,554

1950Class III

41.3%Albert J. Loveland2,855

58.4%Bourke Hickenlooper4,036

6,913

1948Class II

51.1%Guy M. Gillette3,436

48.5%George A. Wilson3,257

6,719

1944Class III

46.3%Guy M. Gillette3,484

53.7%Bourke Hickenlooper4,041

7,528

1942Class II

47.9%Clyde L. Herring3,027

51.9%George A. Wilson3,280

6,320

1938Class III

53.6%Guy M. Gillette3,896

46.0%Lester Dickinson3,345

7,264

1936Class II

53.3%Clyde L. Herring4,448

42.2%Lester Dickinson3,523

8,339

1932Class III

62.9%Richard L. Murphy4,721

35.3%Henry Field2,650

7,511

1930Class II

52.9%Daniel F. Steck3,041

46.8%Lester Dickinson2,686

5,745

1926Class III

49.1%Claude R. Porter3,025

50.7%Smith W. Brookhart3,128

6,167

1924Class II

53.7%Daniel F. Steck3,843

46.3%Smith W. Brookhart3,316

7,159

1920Class III

35.0%Claude R. Porter2,250

63.8%Albert B. Cummins4,103

6,429

1918Class II

40.9%Charles R. Keyes1,422

59.1%William S. Kenyon2,053

3,475

1914Class III

49.0%Maurice Connolly2,002

41.5%Albert B. Cummins1,697

4,087

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

53.5%Guy M. Gillette4,301

42.5%Berry F. Halden3,416

8,038

1922Special · Class II

43.5%Clyde L. Herring2,195

56.5%Smith W. Brookhart2,847

5,042

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

29.3%Deidre Dejear2,278

67.6%Kim Reynolds5,260

7,781

2018

41.7%Fred Hubbell/Rita R Hart3,582

55.2%Kim Reynolds/Adam Gregg4,744

8,587

2014

32.3%Jack Hatch2,471

65.3%Terry Branstad4,986

7,640

2010

46.2%Chet Culver3,451

50.4%Terry Branstad3,770

7,476

2006

63.5%Chet Culver4,596

35.3%Jim Nussle2,558

7,238

2002

54.2%Tom Vilsack3,449

43.7%Doug Gross2,776

6,358

1998

56.4%Tom Vilsack3,602

42.6%Jim Ross Lightfoot2,719

6,383

1994

41.1%Bonnie Campbell2,760

58.0%Terry Branstad3,893

6,713

1990

35.2%Donald Avenson2,576

63.8%Terry Branstad4,669

7,323

1986

48.4%Lowell Junkins3,181

51.6%Terry Branstad3,394

6,576

1982

39.7%Roxanne Conlin2,928

59.8%Terry Branstad4,408

7,367

1978

37.5%Jerome D. Fitzgerald2,391

61.9%Robert D. Ray3,947

6,376

Frequently asked questions

How did Jackson County, Iowa vote in 2024?

In 2024, Jackson County, Iowa voted Republican by 32.5 points (R+32.5), carried by the Republican candidate. Out of 10,801 votes cast, 3,567 went Democratic and 7,074 went Republican.

When did Jackson County, Iowa last vote Democratic?

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

How many people live in Jackson County, Iowa?

Jackson County, Iowa has a population of 19,390 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.

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

Median household income in Jackson County, Iowa is $74,186 — below the national median of $80,734. The Iowa state median is $75,059.

What is the political history of Jackson County, Iowa?

Akashic tracks 38 presidential elections in Jackson County, Iowa from 1876 to 2024. Of those, 14 went Democratic and 20 went Republican.