† 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
GroupMarshalltown, IAIowaUnited States
German23.2%30.5%12.5%
Irish9.5%12.8%9.4%
English8.9%10.2%9.5%
American4.1%4.6%5.3%
Norwegian3.2%4.1%—
Czech1.5%——
French1.4%—1.6%
Scottish1.1%—1.3%
Mexican21.2%5.0%11.3%
Guatemalan0.7%0.4%0.5%
Dominican0.6%—0.7%
Puerto Rican0.4%0.3%1.8%
Honduran0.3%0.2%0.3%
Salvadoran0.3%0.3%0.7%
Cuban0.2%—0.7%
Burmese2.8%0.3%—
Vietnamese0.5%0.3%0.6%
Thai0.2%——
African American†1.1%2.6%9.9%
African0.2%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
Marshalltown, IA
Iowa
United States
Median age
38.5
38.8
39.1
Age 18–24
8.6%
10.0%
9.2%
Age 65 and older
18.1%
18.1%
17.2%
Household economy
Measure
Marshalltown, IA
Iowa
United States
Median household income
$73,315
$75,059
$84,427
Poverty rate
11.2%
11.1%
12.5%
Bachelor's degree or higher (25+)
22.6%
31.8%
35.6%
Languages at home
Measure
Marshalltown, IA
Iowa
United States
Speaks a non-English language at home
24.8%
9.2%
22.3%
Spanish
19.6%
4.7%
13.6%
Other Asian & Pacific Island
3.1%
1.0%
1.1%
Religious landscape
Measure
Marshalltown, IA
Iowa
United States
Catholic
23.1%
14.7%
18.6%
Evangelical Protestant
13.5%
10.9%
16.5%
Unclaimed / not counted
46.7%
55.2%
51.5%
Mainline Protestant
15.0%
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.
Marshalltown, IA
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
1892
−18.6%
1896
−26.1%
1900
−34.0%
1904
−47.8%
1908
−30.7%
1912
+18.4%
1916
−25.4%
1920
−60.7%
1924
−56.6%
1928
−46.5%
1932
−1.6%
1936
−7.7%
1940
−13.3%
1944
−13.1%
1948
−8.5%
1952
−34.5%
1956
−27.7%
1960
−20.6%
1964
+21.6%
1968
−18.2%
1972
−23.6%
1976
−4.7%
1980
−18.3%
1984
−10.2%
1988
+12.0%
1992
+8.3%
1996
+9.5%
2000
−2.6%
2004
−0.6%
2008
+9.4%
2012
+9.4%
2016
−8.2%
2020
−7.7%
2024
−15.5%
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
41.3%Harris7,134
56.8%Trump9,815
1.9%
R+15.5
R+7.8
R+14.1
17,270
R
45.1%Biden8,176
52.8%Trump9,571
2.1%
R+7.7
D+0.5
R+12.1
18,136
R
42.1%Clinton7,652
50.3%Trump9,146
7.6%
R+8.2
R+17.6
R+10.3
18,175
D
53.8%Obama10,257
44.4%Romney8,472
1.8%
D+9.4
±0.0
D+5.5
19,064
D
53.7%Obama10,023
44.4%McCain8,278
1.9%
D+9.4
D+9.9
D+2.1
18,657
R
49.3%Kerry9,443
49.9%Bush9,557
0.9%
R+0.6
D+2.0
D+1.9
19,164
R
47.2%Gore8,322
49.8%Bush8,785
2.9%
R+2.6
R+12.2
R+3.1
17,624
D
50.0%Clinton8,669
40.5%Dole7,017
9.5%
D+9.5
D+1.2
D+1.0
17,324
D
45.4%Clinton8,303
37.1%Bush6,784
17.5%
D+8.3
R+3.7
D+2.7
18,289
D
55.6%Dukakis9,760
43.6%Bush7,657
0.8%
D+12.0
D+22.2
D+19.7
17,549
R
44.4%Mondale8,809
54.6%Reagan10,839
1.0%
R+10.2
D+8.1
D+8.0
19,840
R
36.2%Carter7,114
54.6%Reagan10,707
9.2%
R+18.3
R+13.7
R+8.6
19,626
R
46.7%Carter8,695
51.3%Ford9,562
2.0%
R+4.7
D+18.9
R+6.7
18,630
R
37.3%McGovern6,618
60.9%Nixon10,798
1.8%
R+23.6
R+5.3
R+0.4
17,744
R
38.1%Humphrey6,362
56.3%Nixon9,402
5.5%
R+18.2
R+39.8
R+17.5
16,686
D
60.7%Johnson9,815
39.1%Goldwater6,323
0.2%
D+21.6
D+42.1
R+1.0
16,176
R
39.7%Kennedy6,761
60.2%Nixon10,265
0.1%
R+20.6
D+7.1
R+20.7
17,042
R
35.0%Stevenson5,755
62.7%Eisenhower10,305
2.2%
R+27.7
D+6.8
R+12.3
16,425
R
31.5%Stevenson5,314
65.9%Eisenhower11,135
2.6%
R+34.5
R+25.9
R+23.7
16,890
R
43.7%Truman5,602
52.2%Dewey6,698
4.2%
R+8.5
D+4.6
R+13.0
12,833
R
42.5%Roosevelt5,598
55.7%Dewey7,325
1.8%
R+13.1
D+0.2
R+20.6
13,157
R
43.1%Roosevelt6,497
56.4%Willkie8,503
0.4%
R+13.3
R+5.6
R+23.3
15,065
R
45.0%Roosevelt6,297
52.7%Landon7,377
2.4%
R+7.7
R+6.1
R+32.0
14,008
R
47.4%Roosevelt6,385
49.0%Hoover6,604
3.7%
R+1.6
D+44.8
R+19.4
13,483
R
26.5%Smith3,384
72.9%Hoover9,326
0.6%
R+46.5
D+10.2
R+29.0
12,792
R
11.5%Davis1,516
68.1%Coolidge9,010
20.5%
R+56.6
D+4.1
R+31.5
13,233
R
18.4%Cox2,166
79.1%Harding9,334
2.5%
R+60.7
R+35.3
R+34.6
11,800
R
34.9%Wilson2,414
60.3%Hughes4,172
4.8%
R+25.4
R+43.8
R+28.6
6,916
O
32.2%Wilson2,162
13.8%Taft926
54.0%
Roosevelt +21.8
D+49.1
R+1.1
6,717
R
30.6%Bryan1,941
61.3%Taft3,887
8.0%
R+30.7
D+17.0
R+21.2
6,337
R
19.0%Parker1,203
66.7%Roosevelt4,229
14.3%
R+47.8
R+13.7
R+28.1
6,337
R
31.1%Bryan2,329
65.1%McKinley4,878
3.9%
R+34.0
R+7.9
R+26.5
7,496
R
35.8%Bryan2,626
61.8%McKinley4,541
2.4%
R+26.1
R+7.5
R+20.0
7,342
R
38.0%Cleveland2,312
56.6%Harrison3,441
5.4%
R+18.6
—
R+20.2
6,080
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
40.9%5,060
59.0%7,307
12,383
2020
R
45.9%8,187
50.7%9,057
17,851
voter registration
Registered voters
By party of registration, over time
Party registration · 2024R+4.9
vs
Presidential vote · 2024R+15.5
Registration leans Republican; the presidential vote runs 11 points more Democratic.
DemocraticRepublicanUnaffiliatedOther parties
Voter registration in Marshalltown, IA
Year
Total registered
Democratic
Republican
Unaffiliated
Other
2008
27,559
8,824
8,323
10,409
3
2010
27,412
8,494
8,646
10,265
7
2012
27,744
8,537
8,560
10,634
13
2014
26,175
7,840
8,046
10,255
34
2016
26,114
7,947
8,171
9,912
84
2018
24,824
7,634
7,629
9,381
180
2020
25,171
8,428
8,272
8,282
189
2022
24,693
7,829
8,366
8,300
198
2024
24,729
7,247
8,453
8,810
219
domestic migration
Who moves in and out
Net domestic migration over time
−329 net domestic migration · 2025
20112025
Net −3,961 over 2011–2025 · gain loss
Domestic migration in Marshalltown, IA in Marshalltown, IA: net domestic migration by year
Year
Net domestic migration
2011
+43
2012
−198
2013
−311
2014
−493
2015
−493
2016
−389
2017
−108
2018
−284
2019
−591
2021
−239
2022
−288
2023
−48
2024
−233
2025
−329
Marshalltown's large meatpacking workforce has driven one of Iowa's fastest-growing Hispanic populations, creating a community where shifting demographics and union-household voting patterns make precinct-level targeting unusually consequential.
Across the recorded series it reached a Democratic high of 21.6 points in 1964 and a Republican high of 60.7 points in 1920. Between 2020 and 2024 the metro moved 7.8 points toward the Republican candidate; the 2024 margin was 15.5 points.
A population of 40,114, a 66% non-Hispanic-white share, and a median household income of $73,315 describe the metro. The metro's voting pattern over the last decade is most similar to that of Austin, MN and Rio Grande City-Roma, TX.
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 →
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Marshalltown, IA, Iowa. Akashic. https://akashic.app/cbsa/32260/. Accessed May 20, 2026. License: CC BY 4.0.
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In 2024, Marshalltown, IA, Iowa voted Republican by 15.5 points (R+15.5), carried by the Republican candidate. Out of 17,270 votes cast, 7,134 went Democratic and 9,815 went Republican.
When did Marshalltown, IA, Iowa last vote Democratic?
The most recent presidential election in which Marshalltown, IA, Iowa voted Democratic was 2012.
How many people live in Marshalltown, IA, Iowa?
Marshalltown, IA, Iowa has a population of 40,114 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Marshalltown, IA, Iowa?
Median household income in Marshalltown, IA, Iowa is $73,315 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Marshalltown, IA, Iowa?
Akashic tracks 34 presidential elections in Marshalltown, IA, Iowa from 1892 to 2024. Of those, 6 went Democratic and 27 went Republican.
