| Donald Trump ✓Republican | 51.9% | 2,172 |
|---|---|---|
| Kamala HarrisDemocratic | 46.3% | 1,937 |
| OtherAll other candidates | 1.7% | 73 |
| Year | Margin (D minus R) |
|---|---|
| 2008 | +17.1% |
| 2012 | +9.3% |
| 2016 | −4.5% |
| 2020 | −4.8% |
| 2024 | −5.6% |
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| R | 46.3%Harris1,937 | 51.9%Trump2,172 | 1.7% | 4,182 | ||
| R | 46.6%Biden1,876 | 51.4%Trump2,070 | 2.0%incl. Jorgensen | 4,026 | ||
| R | 44.3%Clinton1,547 | 48.8%Trump1,705 | 7.0%incl. Johnson | 3,495 | ||
| D | 54.7%Obama1,969 | 45.3%Romney1,633 | 0.0% | 3,602 | ||
| D | 57.8%Obama2,194 | 40.6%McCain1,543 | 1.6% | 3,798 |
Demographics
Demographic Profile
Key indicators compared across containing geographies
| Indicator | JeffersonCity | WisconsinState | United StatesNation |
|---|---|---|---|
| Race & Ethnicity | |||
| White | 81.8% | 80.1% | 61.0% |
| Black | 1.2% | 6.1% | 12.2% |
| Asian | 0.1% | 3.0% | 6.0% |
| Two or more races | 9.8% | 7.6% | 12.6% |
| Other race | 6.8% | 3.3% | 8.2% |
| Hispanic or Latino | 14.6% | 8.0% | 19.3% |
| Income & Age | |||
| Median household income | $79,006 | $77,485 | $84,427 |
| Poverty rate | 11.2% | 10.6% | 12.5% |
| Median age | 42 | 40.5 | 39.1 |
| Age 18–24 | 10.3% | 9.3% | 9.2% |
| Age 65 and older | 18.6% | 18.5% | 17.2% |
| Education & Language | |||
| Bachelor's degree or higher (25+) | 28.5% | 33.5% | 35.6% |
| Speaks a non-English language at home | 6.3% | 9.1% | 22.3% |
| Spanish | 5.0% | 5.0% | 13.6% |
| Ancestry | |||
| Largest ancestry | German 46.1% | German 35.8% | German 12.5% |
| 2nd-largest ancestry | Irish 11.1% | Irish 10.4% | Mexican 11.3% |
| 3rd-largest ancestry | Polish 6.7% | Polish 7.6% | English 9.5% |
| Religion | |||
| Catholic | 14.0%County context | 21.0% | 18.6% |
| Evangelical Protestant | 24.8%County context | 14.5% | 16.5% |
| Unaffiliated or unclaimed | 48.8%County context | 52.0% | 51.5% |
| Mainline Protestant | 11.1%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.
Jefferson sits in the Upper Midwest. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 17.1 points in 2008 and a Republican high of 5.6 points in 2024. Between 2020 and 2024 the city moved 0.8 points toward the Republican candidate; the 2024 margin was 5.6 points.
A population of 7,732, a 82% non-Hispanic-white share, and a median household income of $79,006 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 →
Jefferson, Wisconsin. Akashic. https://akashic.app/city/5537900/. Accessed May 20, 2026. License: CC BY 4.0.