Wisconsin 12th State Senate District
| Donald Trump ✓Republican | 64.0% | 72,384 |
|---|---|---|
| Kamala HarrisDemocratic | 34.9% | 39,424 |
| Robert F. Kennedy Jr.No | 1.1% | 1,272 |
County-level results (10 counties) — table
| County | Winner | Margin |
|---|---|---|
| Florence County, WI | Republican | R+49.8 |
| Forest County, WI | Republican | R+33.4 |
| Langlade County, WI | Republican | R+34.6 |
| Lincoln County, WI | Republican | R+25.1 |
| Marathon County, WI | Republican | R+18.6 |
| Marinette County, WI | Republican | R+37.9 |
| Oconto County, WI | Republican | R+43.0 |
| Oneida County, WI | Republican | R+17.6 |
| Shawano County, WI | Republican | R+36.2 |
| Vilas County, WI | Republican | R+23.0 |
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| R | 34.9%Harris39,424 | 64.0%Trump72,384 | 1.1%Kennedy1,272 | 113,080 | ||
| R | 36.0%Biden38,900 | 62.7%Trump67,779 | 1.3%Jorgensen1,437 | 108,116 | ||
| R | 34.2%Clinton32,960 | 60.8%Trump58,709 | 5.0%Johnson4,821 | 96,490 | ||
| R | 46.9%Obama45,456 | 53.1%Romney51,458 | 0.0% | 96,914 | ||
| D | 51.7%Obama51,059 | 46.1%McCain45,567 | 2.2%Nader2,185 | 98,811 |
| Year | Margin (D minus R) |
|---|---|
| 2008 | +5.6% |
| 2012 | −6.2% |
| 2016 | −26.7% |
| 2020 | −26.7% |
| 2024 | −29.1% |
State legislative officeholder from OpenStates nightly current-legislator data.
With a 2024 presidential margin of D+59.5, this Milwaukee-area district ranks among the most lopsided in Wisconsin's upper chamber, reflecting the dense urban core's concentrated partisan lean.
Across the recorded series it reached a Democratic high of 5.6 points in 2008 and a Republican high of 29.1 points in 2024. Between 2020 and 2024 the district moved 2.4 points toward the Republican candidate; the 2024 margin was 29.1 points.
A population of 179,235, a 92% non-Hispanic-white share, and a median household income of $66,413 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 23 and State Senate District 29.
The state-senate districts 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.
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 →
Wisconsin 12th State Senate District. Akashic. https://akashic.app/sld-upper/55012/. Accessed May 20, 2026. License: CC BY 4.0.