Dubuque, Iowa
Presidential margin, 2004–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 2004 | +21.7% |
| 2008 | +28.7% |
| 2012 | +24.3% |
| 2016 | +11.9% |
| 2020 | +12.1% |
| 2024 | +5.3% |
| Year | Won | Democratic | Republican | Other | Margin | Swing | vs U.S. | Total |
|---|---|---|---|---|---|---|---|---|
| D | 51.8%Harris14,965 | 46.5%Trump13,444 | 1.7% | D+5.3 | R+6.8 | D+6.7 | 28,909 | |
| D | 54.9%Biden16,506 | 42.8%Trump12,877 | 2.3% | D+12.1 | D+0.2 | D+7.6 | 30,072 | |
| D | 52.2%Clinton14,940 | 40.3%Trump11,538 | 7.4% | D+11.9 | R+12.4 | D+9.8 | 28,607 | |
| D | 61.3%Obama18,560 | 37.0%Romney11,209 | 1.7% | D+24.3 | R+4.4 | D+20.4 | 30,272 | |
| D | 63.5%Obama18,376 | 34.9%McCain10,084 | 1.6% | D+28.7 | D+7.0 | D+21.4 | 28,918 | |
| D | 60.2%Kerry17,038 | 38.6%Bush10,908 | 1.2% | D+21.7 | — | D+24.1 | 28,279 |
Dubuque has historically backed Democratic candidates in presidential races, but its working-class Catholic heritage and manufacturing economy have made it increasingly competitive as rural Iowa has trended rightward over the past decade.
Across the recorded series it reached a Democratic high of 28.7 points in 2008. Between 2020 and 2024 the city moved 6.8 points toward the Republican candidate; the 2024 margin was 5.3 points.
A population of 59,174, a 85% non-Hispanic-white share, and a median household income of $65,845 describe the city. The city's voting pattern over the last decade is most similar to that of Davenport and Janesville.
The cities 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.
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Dubuque, Iowa. Akashic. https://akashic.app/city/1922395/. Accessed May 20, 2026. License: CC BY 4.0.