| Kamala Harris ✓Democratic | 52.8% | 6,203 |
|---|---|---|
| Donald TrumpRepublican | 45.6% | 5,358 |
| OtherAll other candidates | 1.5% | 179 |
| Year | Margin (D minus R) |
|---|---|
| 2008 | +11.9% |
| 2012 | +3.2% |
| 2016 | +4.2% |
| 2020 | +7.9% |
| 2024 | +7.2% |
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| D | 6,203 | 5,358 | 11,740 | ||
| D | 5,914 | 5,035 | 11,168 | ||
| D | 4,862 | 4,439 | 9,975 | ||
| D | 5,154 | 4,835 | 9,989 | ||
| D | 5,577 | 4,382 | 10,082 |
Demographics
Demographic Profile
Key indicators compared across containing geographies
| Indicator | OnalaskaCity | WisconsinState | United StatesNation |
|---|---|---|---|
| Race & Ethnicity | |||
| White | 85.8% | 80.1% | 61.0% |
| Black | 2.7% | 6.1% | 12.2% |
| Asian | 5.3% | 3.0% | 6.0% |
| Two or more races | 4.1% | 7.6% | 12.6% |
| Other race | 2.0% | 3.3% | 8.2% |
| Hispanic or Latino | 2.6% | 8.0% | 19.3% |
| Income & Age | |||
| Median household income | $85,867 | $77,485 | $84,427 |
| Poverty rate | 6.1% | 10.6% | 12.5% |
| Median age | 40.7 | 40.5 | 39.1 |
| Age 18–24 | 15.2% | 9.3% | 9.2% |
| Age 65 and older | 18.0% | 18.5% | 17.2% |
| Education & Language | |||
| Bachelor's degree or higher (25+) | 41.7% | 33.4% | 35.7% |
| Speaks a non-English language at home | 10.2% | 9.0% | 22.3% |
| Other Asian & Pacific Island | 4.5% | 1.2% | 1.1% |
| Spanish | 3.1% | 4.9% | 13.6% |
| Ancestry | |||
| Largest ancestry | German 40.0% | German 35.8% | German 12.5% |
| 2nd-largest ancestry | Irish 13.5% | Irish 10.4% | English 9.5% |
| 3rd-largest ancestry | English 7.7% | Polish 7.6% | Irish 9.4% |
| Religion | |||
| Catholic | 17.1%County context | 21.0% | 18.6% |
| Evangelical Protestant | 11.3%County context | 14.5% | 16.5% |
| Unaffiliated or unclaimed | 57.2%County context | 52.0% | 51.5% |
| Mainline Protestant | 11.4%County context | 8.4% | 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.
Onalaska sits in the Upper Midwest. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 11.9 points in 2008. Between 2020 and 2024 the city moved 0.7 points toward the Republican candidate; the 2024 margin was 7.2 points.
A population of 19,348, a 86% non-Hispanic-white share, and a median household income of $85,867 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 →
Onalaska, Wisconsin. Akashic. https://akashic.app/city/5559925/. Accessed May 20, 2026. License: CC BY 4.0.