Akashic
1892–2024
Akashic
Dubuque, IA
presidential margin
2008D+20.82012D+14.72016R+1.22020R+2.92024R+8.6
full record · 1892 → 2024
R+8.6
2024
median income$77,630U.S. $80,734 · IA $75,059
median age39.1U.S. 39.1 · IA 38.8
poverty rate9.7%U.S. 12.5% · IA 11.1%
bachelor’s+ (25+)33.4%U.S. 35.6% · IA 31.8%
non-english4.8%U.S. 22.3% · IA 9.2%
race · ethnicity · ancestry
German44.7%
Irish19.4%
English6.7%
Mexican2.1%
Puerto Rican0.4%
African American†2.3%
African0.3%
Filipino0.4%
Asian Indian0.3%
Chinese0.2%
Marshallese0.8%
religion
other traditions
Mainline6.5%
Latter-day Saints0.9%
Other Christian0.7%
American Community Survey 2024 5-year (income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents, unaffiliated is the unclaimed remainder.

Dubuque, IA, Iowa

Akashic
Dubuque, IATrumpR+8.6
—
2024 presidential margin by county for Dubuque, IA, IAA map of the single county of Dubuque, IA, IA, outlined and filled by its 2024 presidential margin from deep red (Republican) through neutral to deep blue (Democratic), seated within the faint outlines of the surrounding states.Dubuque County, IA · R+8.6
How it voted
Share of the 2024 vote
Donald Trump ✓Republican53.5%28,224
Kamala HarrisDemocratic44.9%23,705
Robert F. Kennedy Jr.We The People1.6%841
D+60
R+60
A single county, filled by its 2024 D-vs-R margin. Hover it for the full result.
County-level results (1 county) — table
2024 presidential result by county for Dubuque, IA, IA — winner and D-vs-R margin.
CountyWinnerMargin
Dubuque County, IARepublicanR+8.6
34 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonDemocraticRepublicanOtherMarginTotal
R
44.9%Harris23,705
53.5%Trump28,224
1.6%Kennedy841
−8.6%
52,770
R
47.6%Biden25,657
50.5%Trump27,214
2.0%Jorgensen1,055
−2.9%
53,926
R
45.5%Clinton22,850
46.7%Trump23,460
7.8%Johnson3,911
−1.2%
50,221
D
56.5%Obama28,768
41.8%Romney21,280
1.7%Johnson846
+14.7%
50,894
D
59.7%Obama28,611
38.9%McCain18,651
1.4%Nader691
+20.8%
47,953
D
56.5%Kerry26,561
42.7%Bush20,100
0.8%Other382
+13.7%
47,043
D
55.4%Gore22,341
40.8%Bush16,462
3.8%Nader1,520
+14.6%
40,323
D
54.8%Clinton20,839
35.2%Dole13,391
10.0%Perot3,821
+19.6%
38,051
D
47.8%Clinton20,539
32.6%Bush14,007
19.6%Perot8,422
+15.2%
42,968
D
61.7%Dukakis23,797
37.7%Bush14,530
0.6%Larouche220
+24.0%
38,547
D
52.7%Mondale21,876
46.4%Reagan19,239
0.9%Larouche376
+6.4%
41,491
D
45.0%Carter18,689
44.9%Reagan18,649
10.1%Anderson4,201
+0.1%
41,539
D
52.6%Carter20,548
44.7%Ford17,459
2.7%McCarthy1,042
+7.9%
39,049
D
50.4%McGovern18,417
47.3%Nixon17,272
2.3%Schmitz832
+3.1%
36,521
D
53.5%Humphrey18,664
40.7%Nixon14,197
5.7%Wallace2,002
+12.8%
34,863
D
70.1%Johnson23,695
29.9%Goldwater10,104
0.1%Hass24
+40.2%
33,823
D
63.3%Kennedy22,007
36.6%Nixon12,740
0.1%Byrd19
+26.7%
34,766
R
42.2%Stevenson13,174
57.4%Eisenhower17,923
0.5%Andrews150
−15.2%
31,247
R
44.3%Stevenson14,542
55.0%Eisenhower18,075
0.7%Hallinan228
−10.8%
32,845
D
59.9%Truman15,521
39.0%Dewey10,111
1.1%Thurmond281
+20.9%
25,913
D
50.5%Roosevelt12,867
49.1%Dewey12,502
0.3%Thomas89
+1.4%
25,458
R
48.5%Roosevelt13,805
51.3%Willkie14,590
0.2%Thomas46
−2.8%
28,441
D
59.5%Roosevelt16,291
30.2%Landon8,275
10.3%Lemke2,812
+29.3%
27,378
D
71.2%Roosevelt19,210
25.0%Hoover6,747
3.9%Thomas1,042
+46.2%
26,999
D
66.4%Smith19,437
33.3%Hoover9,744
0.3%Thomas81
+33.1%
29,262
O
22.6%Davis5,718
32.8%Coolidge8,280
44.6%La Follette11,269
La Follette +11.8
25,267
R
36.4%Cox7,636
59.2%Harding12,436
4.4%Debs928
−22.9%
21,000
D
49.6%Wilson6,063
47.2%Hughes5,772
3.2%Benson388
+2.4%
12,223
D
53.2%Wilson6,237
13.8%Taft1,620
33.0%Roosevelt3,867
+39.4%
11,724
D
56.1%Bryan6,645
39.7%Taft4,708
4.2%Debs502
+16.3%
11,855
R
43.3%Parker4,913
48.3%Roosevelt5,485
8.4%Debs955
−5.0%
11,353
D
57.5%Bryan6,655
41.1%McKinley4,752
1.4%Woolley157
+16.5%
11,564
D
54.7%Bryan6,510
43.7%McKinley5,203
1.6%Palmer185
+11.0%
11,898
D
65.0%Cleveland6,831
33.5%Harrison3,526
1.5%Weaver156
+31.4%
10,513
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over timeDemocratic-minus-Republican presidential margin from 1892 to 2024. Most recent: −8.6% in 2024.flipped R · 2016−8.6%DR18922024
Presidential margin over time
YearMargin (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
voter registration
Registered voters
By party of registration, over time
Voter registration in Dubuque, IARegistered voters by party of registration, 2008–2024. Latest total 71,627 in 2024.18K36.1K54.1K72.2K71.6K20082024
DemocraticRepublicanUnaffiliatedOther parties
Voter registration in Dubuque, IA
YearTotal registeredDemocraticRepublicanUnaffiliatedOther
200864,90327,81113,75023,32814
201063,91626,90714,32322,65630
201267,55326,99215,87824,59291
201468,09326,87516,16224,865191
201669,56428,05417,43823,723349
201869,85027,66517,17924,451555
202072,15229,00720,90421,633608
202271,29027,20721,00122,425657
202471,62725,12322,50723,243754
Source: Iowa Secretary of State

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.

Political twins — metros

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

Cedar Rapids, IA
80.9twin score
2000–2012 trajectory≠ % Catholic
Platteville, WI
80.8twin score
2004–2012 trajectory% Catholic≠ elasticity
Waterloo-Cedar Falls, IA
80.7twin score
2000–2012 trajectory≠ % Catholic

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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All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Dubuque, IA, Iowa. Akashic. https://akashic.app/cbsa/20220/. Accessed May 20, 2026. License: CC BY 4.0.
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Places within Dubuque, IA

counties1
Dubuque County

Frequently asked questions

How did Dubuque, IA, Iowa vote in 2024?
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.