† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
1 counties by 2024 margin · County returns · 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
GroupFort Madison, IAIowaUnited States
German33.0%30.5%12.5%
Irish16.2%12.8%9.4%
English11.4%10.2%9.5%
American4.6%4.6%5.3%
Swedish1.7%1.9%—
Italian1.4%1.6%4.8%
French1.4%—1.6%
Scottish1.4%—1.3%
Mexican2.8%5.0%11.3%
Venezuelan0.5%——
African American†1.6%2.6%9.9%
African0.7%0.3%0.5%
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
Fort Madison, IA
Iowa
United States
Median age
43.6
38.8
39.1
Age 18–24
6.9%
10.0%
9.2%
Age 65 and older
22.3%
18.1%
17.2%
Household economy
Measure
Fort Madison, IA
Iowa
United States
Median household income
$62,382
$75,059
$84,427
Poverty rate
13.1%
11.1%
12.5%
Bachelor's degree or higher (25+)
21.7%
31.8%
35.6%
Languages at home
Measure
Fort Madison, IA
Iowa
United States
Speaks a non-English language at home
2.6%
9.2%
22.3%
Spanish
1.6%
4.7%
13.6%
Religious landscape
Measure
Fort Madison, IA
Iowa
United States
Catholic
16.1%
14.7%
18.6%
Evangelical Protestant
7.3%
10.9%
16.5%
Unclaimed / not counted
57.8%
55.2%
51.5%
Mainline Protestant
15.4%
15.8%
5.2%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Fort Madison, IA
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
1892
+10.8%
1896
+3.0%
1900
+7.1%
1904
−8.7%
1908
+4.9%
1912
+22.0%
1916
−4.7%
1920
−34.2%
1924
−27.7%
1928
−19.8%
1932
+19.8%
1936
+3.5%
1940
−7.6%
1944
−6.5%
1948
+8.1%
1952
−17.5%
1956
−16.9%
1960
−4.0%
1964
+31.9%
1968
−4.5%
1972
−12.7%
1976
+4.7%
1980
−3.2%
1984
+0.9%
1988
+27.1%
1992
+26.8%
1996
+24.9%
2000
+19.9%
2004
+15.0%
2008
+16.0%
2012
+15.5%
2016
−15.8%
2020
−19.3%
2024
−27.7%
DemocraticRepublican
34 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. vs U.S. · margin relative to the national result that year.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
R
34.9%Harris5,659
62.7%Trump10,152
2.4%
R+27.7
R+8.4
R+26.3
16,198
R
39.1%Biden6,541
58.4%Trump9,773
2.5%
R+19.3
R+3.5
R+23.8
16,734
R
38.0%Clinton6,215
53.9%Trump8,803
8.1%
R+15.8
R+31.3
R+17.9
16,347
D
56.7%Obama10,714
41.2%Romney7,785
2.2%
D+15.5
R+0.5
D+11.6
18,911
D
57.0%Obama9,821
41.0%McCain7,062
2.0%
D+16.0
D+1.0
D+8.7
17,224
D
56.8%Kerry10,152
41.8%Bush7,472
1.3%
D+15.0
R+4.9
D+17.5
17,858
D
58.1%Gore9,632
38.3%Bush6,339
3.6%
D+19.9
R+5.0
D+19.4
16,572
D
56.4%Clinton8,831
31.5%Dole4,932
12.1%
D+24.9
R+1.9
D+16.4
15,662
D
54.6%Clinton9,366
27.9%Bush4,777
17.5%
D+26.8
R+0.3
D+21.2
17,152
D
63.1%Dukakis10,911
36.0%Bush6,228
0.9%
D+27.1
D+26.2
D+34.8
17,290
D
50.0%Mondale8,912
49.2%Reagan8,756
0.8%
D+0.9
D+4.1
D+19.1
17,809
R
44.9%Carter8,204
48.1%Reagan8,793
6.9%
R+3.2
R+7.9
D+6.5
18,265
D
51.6%Carter9,017
46.9%Ford8,195
1.4%
D+4.7
D+17.4
D+2.6
17,465
R
42.6%McGovern7,510
55.3%Nixon9,748
2.0%
R+12.7
R+8.2
D+10.5
17,618
R
44.8%Humphrey8,076
49.3%Nixon8,883
6.0%
R+4.5
R+36.3
R+3.8
18,036
D
65.9%Johnson12,244
34.0%Goldwater6,321
0.1%
D+31.9
D+35.9
D+9.3
18,582
R
48.0%Kennedy9,936
52.0%Nixon10,765
0.0%
R+4.0
D+12.9
R+4.2
20,701
R
41.5%Stevenson8,226
58.4%Eisenhower11,571
0.2%
R+16.9
D+0.6
R+1.5
19,829
R
41.1%Stevenson8,625
58.6%Eisenhower12,289
0.3%
R+17.5
R+25.6
R+6.7
20,969
D
53.5%Truman9,201
45.3%Dewey7,801
1.2%
D+8.1
D+14.6
D+3.7
17,212
R
46.5%Roosevelt8,252
53.0%Dewey9,406
0.4%
R+6.5
D+1.1
R+14.0
17,736
R
46.1%Roosevelt9,117
53.7%Willkie10,616
0.2%
R+7.6
R+11.1
R+17.5
19,766
D
49.9%Roosevelt9,630
46.4%Landon8,955
3.8%
D+3.5
R+16.3
R+20.8
19,317
D
59.3%Roosevelt10,624
39.6%Hoover7,084
1.1%
D+19.8
D+39.6
D+2.0
17,902
R
40.0%Smith7,785
59.9%Hoover11,645
0.1%
R+19.8
D+7.9
R+2.4
19,455
R
26.7%Davis4,903
54.4%Coolidge9,999
18.9%
R+27.7
D+6.5
R+2.6
18,377
R
31.7%Cox5,177
65.9%Harding10,763
2.3%
R+34.2
R+29.5
R+8.0
16,323
R
46.5%Wilson3,993
51.2%Hughes4,395
2.3%
R+4.7
R+26.7
R+7.8
8,587
D
45.7%Wilson3,891
23.7%Taft2,016
30.7%
D+22.0
D+17.2
D+2.5
8,520
D
51.5%Bryan4,706
46.6%Taft4,262
1.9%
D+4.9
D+13.6
D+14.4
9,144
R
44.0%Parker3,848
52.7%Roosevelt4,612
3.3%
R+8.7
R+15.9
D+10.9
8,749
D
53.0%Bryan5,182
45.9%McKinley4,486
1.1%
D+7.1
D+4.1
D+14.7
9,778
D
50.7%Bryan5,153
47.7%McKinley4,847
1.6%
D+3.0
R+7.8
D+9.1
10,162
D
54.2%Cleveland4,956
43.5%Harrison3,971
2.3%
D+10.8
—
D+9.1
9,137
Congressional elections · 2 Senate races
U.S. Senate
Source · MIT Election Lab (MEDSL), Senate. CC-BY 4.0.
Year
Won
Democratic
Republican
Total
2022
R
39.1%4,476
60.8%6,964
11,453
2020
R
45.0%7,445
51.3%8,489
16,541
voter registration
Registered voters
By party of registration, over time
Party registration · 2024R+0.1
vs
Presidential vote · 2024R+27.7
Registration leans Republican; the presidential vote runs 28 points more Democratic.
DemocraticRepublicanUnaffiliatedOther parties
Voter registration in Fort Madison, IA
Year
Total registered
Democratic
Republican
Unaffiliated
Other
2008
24,448
11,403
4,247
8,783
15
2010
23,823
10,671
4,545
8,581
26
2012
24,405
10,702
4,672
8,998
33
2014
23,938
10,356
4,396
9,140
46
2016
24,154
10,153
4,784
9,109
108
2018
23,544
9,370
4,847
9,166
161
2020
23,785
9,101
6,196
8,297
191
2022
22,953
8,155
6,402
8,193
203
2024
23,050
7,238
7,261
8,358
193
domestic migration
Who moves in and out
Net domestic migration over time
−97 net domestic migration · 2025
20112025
Net −2,581 over 2011–2025 · gain loss
Domestic migration in Fort Madison, IA in Fort Madison, IA: net domestic migration by year
Year
Net domestic migration
2011
−259
2012
−10
2013
−298
2014
−149
2015
−156
2016
−414
2017
−194
2018
−279
2019
−219
2021
−146
2022
−238
2023
−150
2024
+28
2025
−97
Fort Madison, IA sits in the Corn Belt. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 31.9 points in 1964 and a Republican high of 34.2 points in 1920. Between 2020 and 2024 the metro moved 8.4 points toward the Republican candidate; the 2024 margin was 27.7 points.
A population of 32,893, a 90% non-Hispanic-white share, and a median household income of $62,382 describe the metro. The metro's voting pattern over the last decade is most similar to that of Burlington, IA-IL and Clinton, IA.
Akashic
Political twins — metros
The metros whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
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.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Fort Madison, IA, Iowa. Akashic. https://akashic.app/cbsa/22800/. Accessed May 20, 2026. License: CC BY 4.0.
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In 2024, Fort Madison, IA, Iowa voted Republican by 27.7 points (R+27.7), carried by the Republican candidate. Out of 16,198 votes cast, 5,659 went Democratic and 10,152 went Republican.
When did Fort Madison, IA, Iowa last vote Democratic?
The most recent presidential election in which Fort Madison, IA, Iowa voted Democratic was 2012.
How many people live in Fort Madison, IA, Iowa?
Fort Madison, IA, Iowa has a population of 32,893 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Fort Madison, IA, Iowa?
Median household income in Fort Madison, IA, Iowa is $62,382 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Fort Madison, IA, Iowa?
Akashic tracks 34 presidential elections in Fort Madison, IA, Iowa from 1892 to 2024. Of those, 18 went Democratic and 16 went Republican.
