- Lead
- 15,838
- Total
- 101,093
- vs nation
- R+14.2
Wisconsin 9th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 14,858
- Total
- 98,381
- vs nation
- R+19.6
- Lead
- 13,192
- Total
- 89,210
- vs nation
- R+16.9
- Lead
- 3,506
- Total
- 93,772
- vs nation
- R+7.6
- Lead
- 5,077
- Total
- 93,354
- vs nation
- R+1.8
- Lead
- 5,512
- Total
- 94,869
- vs nation
- R+3.4
- Lead
- 4,343
- Total
- 83,504
- vs nation
- R+5.7
- Lead
- 6,865
- Total
- 72,360
- vs nation
- D+1.0
Key facts
- 2024 presidential margin
- R+15.7MIT Election Lab
- Population
- 178,8862024 5-year
- Population density
- 251 / sq mi2024 5-year · TIGER/Line
- Land area
- 712 sq miTIGER/Line
- Median household income
- $70,6962024 5-year
- White (non-Hispanic)
- 82.6%2024 5-year
- Black
- 2.0%2024 5-year
- Hispanic / Latino
- 6.7%2024 5-year
- Peak Democratic margin
- D+47.1 in 1932MIT Election Lab
- Peak Republican margin
- R+51.2 in 1920MIT Election Lab
- Most similar
- State Senate District 19, WI · twin score 89.8
presidential history
Party record book
Wisconsin 9th State Senate District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 (partial returns from 1876) · 38 presidential cycles · 38 with a vote-share denominator · 34 with a national benchmark
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Franklin D. Roosevelt1932
71.7%
30,928 votes · D+47.1 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 69.1%
Republican
Warren G. Harding1920
64.9%
17,681 votes · R+51.2 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1956 · 59.3%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
48,430votes
51.9% of the vote · D+5.4 · modeled estimate
Runner-up · Barack Obama, 2012 · 44,533 votes
Republican
Donald Trump2024
57,676votes
57.1% of the vote · R+15.7 · modeled estimate
Runner-up · Donald Trump, 2020 · 55,688 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Franklin D. Roosevelt1932
+29.3pts D vs U.S.
Place D+47.1 · U.S. D+17.8 · modeled estimate
Runner-up · George McGovern, 1972 · +25.3 pts
Republican
Warren G. Harding1920
+25.0pts R vs U.S.
Place R+51.2 · U.S. R+26.2 · modeled estimate
Runner-up · Donald Trump, 2020 · +19.6 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row is a county-allocated estimate of U.S. House votes for this district — county returns apportioned onto its boundary, not precinct-counted. “Vote lead” is the estimated local lead here, not necessarily the winner of the full contest.
In 2024 it voted Republican by R+15.7, against D+5.4 in 2008, having changed party at least once across the five cycles. About 135,000 residents lived here, with White alone at 84.8% in the 2024 ACS 5-year.
Across the recorded series it reached a Democratic high of 47.1 points in 1932 and a Republican high of 51.2 points in 1920. Between 2020 and 2024 the district moved 0.6 points toward the Republican candidate; the 2024 margin was 15.7 points.
A population of 178,886, a 83% non-Hispanic-white share, and a median household income of $70,696 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 19 and State Senate District 1.
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.
District research tools
Open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report → · Browse all comparisons →
Wisconsin 9th State Senate District. Akashic. https://akashic.app/sld-upper/55009/. Accessed May 20, 2026. License: CC BY 4.0.