| Donald Trump ✓Republican | 53.5% | 1,314 |
|---|---|---|
| Kamala HarrisDemocratic | 44.5% | 1,093 |
| OtherAll other candidates | 1.9% | 47 |
| Year | Margin (D minus R) |
|---|---|
| 2008 | +33.8% |
| 2012 | +34.7% |
| 2016 | +6.3% |
| 2020 | +3.4% |
| 2024 | −9.0% |
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 1,093 | 1,314 | 2,454 | ||
| D | 1,348 | 1,257 | 2,668 | ||
| D | 1,341 | 1,170 | 2,726 | ||
| D | 1,954 | 947 | 2,901 | ||
| D | 1,948 | 950 | 2,950 |
Demographics
Demographic Profile
Key indicators compared across containing geographies
| Indicator | OelweinCity | IowaState | United StatesNation |
|---|---|---|---|
| Race & Ethnicity | |||
| White | 92.9% | 84.2% | 61.0% |
| Black | 0.1% | 3.9% | 12.2% |
| Asian | 0.9% | 2.5% | 6.0% |
| Two or more races | 5.3% | 6.6% | 12.6% |
| Other race | 0.7% | 2.9% | 8.2% |
| Hispanic or Latino | 1.3% | 7.3% | 19.3% |
| Income & Age | |||
| Median household income | $46,653 | $75,059 | $84,427 |
| Poverty rate | 18.5% | 11.1% | 12.5% |
| Median age | 42.4 | 38.8 | 39.1 |
| Age 18–24 | 8.7% | 10.0% | 9.2% |
| Age 65 and older | 22.9% | 18.1% | 17.2% |
| Education & Language | |||
| Bachelor's degree or higher (25+) | 17.5% | 31.4% | 35.7% |
| Speaks a non-English language at home | 0.9% | 9.1% | 22.3% |
| Ancestry | |||
| Largest ancestry | German 40.9% | German 30.5% | German 12.5% |
| 2nd-largest ancestry | Irish 14.2% | Irish 12.8% | English 9.5% |
| 3rd-largest ancestry | American 8.5% | English 10.2% | Irish 9.4% |
| Religion | |||
| Catholic | 14.6%County context | 14.7% | 18.6% |
| Evangelical Protestant | 5.6%County context | 10.9% | 16.5% |
| Unaffiliated or unclaimed | 52.0%County context | 55.2% | 51.5% |
| Mainline Protestant | 26.0%County context | 15.8% | 5.2% |
ACS values are survey estimates and may include margins of error.
Religion data may be available only at county or larger geographies. Sub-county values are labeled when inherited, modeled, or contextual.
Oelwein sits in the Corn Belt. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 34.7 points in 2012 and a Republican high of 9.0 points in 2024. Between 2020 and 2024 the city moved 12.4 points toward the Republican candidate; the 2024 margin was 9.0 points.
A population of 5,834, a 93% non-Hispanic-white share, and a median household income of $46,653 describe the city.
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 →
Oelwein, Iowa. Akashic. https://akashic.app/city/1958620/. Accessed May 20, 2026. License: CC BY 4.0.