† 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
GroupDubuque, IAIowaUnited States
German44.7%30.5%12.5%
Irish19.4%12.8%9.4%
English6.7%10.2%9.5%
American5.1%4.6%5.3%
Norwegian2.6%4.1%—
Italian2.1%1.6%4.8%
French1.8%—1.6%
Dutch1.4%2.7%—
Mexican2.1%5.0%11.3%
Puerto Rican0.4%0.3%1.8%
African American†2.3%2.6%9.9%
African0.3%0.3%0.5%
Filipino0.4%0.2%0.9%
Asian Indian0.3%0.5%1.4%
Chinese0.2%0.3%1.3%
Burmese0.2%0.3%—
Marshallese0.8%——
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
Dubuque, IA
Iowa
United States
Median age
39.1
38.8
39.1
Age 18–24
9.8%
10.0%
9.2%
Age 65 and older
19.4%
18.1%
17.2%
Household economy
Measure
Dubuque, IA
Iowa
United States
Median household income
$77,630
$75,059
$84,427
Poverty rate
9.7%
11.1%
12.5%
Bachelor's degree or higher (25+)
33.4%
31.8%
35.6%
Languages at home
Measure
Dubuque, IA
Iowa
United States
Speaks a non-English language at home
4.8%
9.2%
22.3%
Spanish
2.3%
4.7%
13.6%
Religious landscape
Measure
Dubuque, IA
Iowa
United States
Catholic
43.8%
14.7%
18.6%
Evangelical Protestant
3.3%
10.9%
16.5%
Unclaimed / not counted
44.4%
55.2%
51.5%
Mainline Protestant
6.5%
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.
Dubuque, IA
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
1892
+31.4%
1896
+11.0%
1900
+16.5%
1904
−5.0%
1908
+16.3%
1912
+39.4%
1916
+2.4%
1920
−22.9%
1924
−10.1%
1928
+33.1%
1932
+46.2%
1936
+29.3%
1940
−2.8%
1944
+1.4%
1948
+20.9%
1952
−10.8%
1956
−15.2%
1960
+26.7%
1964
+40.2%
1968
+12.8%
1972
+3.1%
1976
+7.9%
1980
+0.1%
1984
+6.4%
1988
+24.0%
1992
+15.2%
1996
+19.6%
2000
+14.6%
2004
+13.7%
2008
+20.8%
2012
+14.7%
2016
−1.2%
2020
−2.9%
2024
−8.6%
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
44.9%Harris23,705
53.5%Trump28,224
1.6%
R+8.6
R+5.7
R+7.1
52,770
R
47.6%Biden25,657
50.5%Trump27,214
2.0%
R+2.9
R+1.7
R+7.3
53,926
R
45.5%Clinton22,850
46.7%Trump23,460
7.8%
R+1.2
R+15.9
R+3.3
50,221
D
56.5%Obama28,768
41.8%Romney21,280
1.7%
D+14.7
R+6.1
D+10.9
50,894
D
59.7%Obama28,611
38.9%McCain18,651
1.4%
D+20.8
D+7.0
D+13.5
47,953
D
56.5%Kerry26,561
42.7%Bush20,100
0.8%
D+13.7
R+0.8
D+16.2
47,043
D
55.4%Gore22,341
40.8%Bush16,462
3.8%
D+14.6
R+5.0
D+14.1
40,323
D
54.8%Clinton20,839
35.2%Dole13,391
10.0%
D+19.6
D+4.4
D+11.1
38,051
D
47.8%Clinton20,539
32.6%Bush14,007
19.6%
D+15.2
R+8.8
D+9.6
42,968
D
61.7%Dukakis23,797
37.7%Bush14,530
0.6%
D+24.0
D+17.7
D+31.8
38,547
D
52.7%Mondale21,876
46.4%Reagan19,239
0.9%
D+6.4
D+6.3
D+24.6
41,491
D
45.0%Carter18,689
44.9%Reagan18,649
10.1%
D+0.1
R+7.8
D+9.8
41,539
D
52.6%Carter20,548
44.7%Ford17,459
2.7%
D+7.9
D+4.8
D+5.8
39,049
D
50.4%McGovern18,417
47.3%Nixon17,272
2.3%
D+3.1
R+9.7
D+26.3
36,521
D
53.5%Humphrey18,664
40.7%Nixon14,197
5.7%
D+12.8
R+27.4
D+13.5
34,863
D
70.1%Johnson23,695
29.9%Goldwater10,104
0.1%
D+40.2
D+13.5
D+17.6
33,823
D
63.3%Kennedy22,007
36.6%Nixon12,740
0.1%
D+26.7
D+41.9
D+26.5
34,766
R
42.2%Stevenson13,174
57.4%Eisenhower17,923
0.5%
R+15.2
R+4.4
D+0.2
31,247
R
44.3%Stevenson14,542
55.0%Eisenhower18,075
0.7%
R+10.8
R+31.6
±0.0
32,845
D
59.9%Truman15,521
39.0%Dewey10,111
1.1%
D+20.9
D+19.4
D+16.4
25,913
D
50.5%Roosevelt12,867
49.1%Dewey12,502
0.3%
D+1.4
D+4.2
R+6.1
25,458
R
48.5%Roosevelt13,805
51.3%Willkie14,590
0.2%
R+2.8
R+32.0
R+12.7
28,441
D
59.5%Roosevelt16,291
30.2%Landon8,275
10.3%
D+29.3
R+16.9
D+5.0
27,378
D
71.2%Roosevelt19,210
25.0%Hoover6,747
3.9%
D+46.2
D+13.0
D+28.4
26,999
D
66.4%Smith19,437
33.3%Hoover9,744
0.3%
D+33.1
D+43.3
D+50.6
29,262
O
22.6%Davis5,718
32.8%Coolidge8,280
44.6%
La Follette +11.8
D+12.7
D+15.0
25,267
R
36.4%Cox7,636
59.2%Harding12,436
4.4%
R+22.9
R+25.2
D+3.3
21,000
D
49.6%Wilson6,063
47.2%Hughes5,772
3.2%
D+2.4
R+37.0
R+0.8
12,223
D
53.2%Wilson6,237
13.8%Taft1,620
33.0%
D+39.4
D+23.0
D+19.8
11,724
D
56.1%Bryan6,645
39.7%Taft4,708
4.2%
D+16.3
D+21.4
D+25.9
11,855
R
43.3%Parker4,913
48.3%Roosevelt5,485
8.4%
R+5.0
R+21.5
D+14.6
11,353
D
57.5%Bryan6,655
41.1%McKinley4,752
1.4%
D+16.5
D+5.5
D+24.0
11,564
D
54.7%Bryan6,510
43.7%McKinley5,203
1.6%
D+11.0
R+20.5
D+17.1
11,898
D
65.0%Cleveland6,831
33.5%Harrison3,526
1.5%
D+31.4
—
D+29.8
10,513
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
46.4%18,020
53.5%20,762
38,823
2020
R
47.9%25,433
49.1%26,034
53,043
voter registration
Registered voters
By party of registration, over time
Party registration · 2024D+3.7
vs
Presidential vote · 2024R+8.6
Dubuque, IA registers Democratic but votes Republican — a 12-point gap between how voters register and how they vote, the signature of ancestral registration that trails realignment.
DemocraticRepublicanUnaffiliatedOther parties
Voter registration in Dubuque, IA
Year
Total registered
Democratic
Republican
Unaffiliated
Other
2008
64,903
27,811
13,750
23,328
14
2010
63,916
26,907
14,323
22,656
30
2012
67,553
26,992
15,878
24,592
91
2014
68,093
26,875
16,162
24,865
191
2016
69,564
28,054
17,438
23,723
349
2018
69,850
27,665
17,179
24,451
555
2020
72,152
29,007
20,904
21,633
608
2022
71,290
27,207
21,001
22,425
657
2024
71,627
25,123
22,507
23,243
754
domestic migration
Who moves in and out
Net domestic migration over time
+177 net domestic migration · 2025
20112025
Net −747 over 2011–2025 · gain loss
Domestic migration in Dubuque, IA in Dubuque, IA: net domestic migration by year
Year
Net domestic migration
2011
+265
2012
+234
2013
+433
2014
+127
2015
+21
2016
−574
2017
−48
2018
−465
2019
+106
2021
−572
2022
−273
2023
−36
2024
−142
2025
+177
Dubuque's dense Catholic parish network and working-class manufacturing base have historically anchored Democratic margins, but the area has trended Republican in presidential cycles over the past decade, mirroring broader shifts among non-college white voters.
Across the recorded series it reached a Democratic high of 46.2 points in 1932 and a Republican high of 22.9 points in 1920. Between 2020 and 2024 the metro moved 5.7 points toward the Republican candidate; the 2024 margin was 8.6 points.
A population of 99,030, a 88% non-Hispanic-white share, and a median household income of $77,630 describe the metro. The metro's voting pattern over the last decade is most similar to that of Cedar Rapids, IA and Platteville, WI.
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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Dubuque, IA, Iowa. Akashic. https://akashic.app/cbsa/20220/. Accessed May 20, 2026. License: CC BY 4.0.
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In 2024, Dubuque, IA, Iowa voted Republican by 8.6 points (R+8.6), carried by the Republican candidate. Out of 52,770 votes cast, 23,705 went Democratic and 28,224 went Republican.
When did Dubuque, IA, Iowa last vote Democratic?
The most recent presidential election in which Dubuque, IA, Iowa voted Democratic was 2012.
How many people live in Dubuque, IA, Iowa?
Dubuque, IA, Iowa has a population of 99,030 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Dubuque, IA, Iowa?
Median household income in Dubuque, IA, Iowa is $77,630 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Dubuque, IA, Iowa?
Akashic tracks 34 presidential elections in Dubuque, IA, Iowa from 1892 to 2024. Of those, 25 went Democratic and 8 went Republican.
