- Lead
- 9,397
- Total
- 36,053
- vs nation
- R+24.6
Kansas 31st State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 9,039
- Total
- 36,340
- vs nation
- R+29.3
- Lead
- 9,337
- Total
- 31,974
- vs nation
- R+31.3
- Lead
- 9,047
- Total
- 30,272
- vs nation
- R+33.7
- Lead
- 7,848
- Total
- 32,430
- vs nation
- R+31.5
- Lead
- 10,847
- Total
- 30,920
- vs nation
- R+32.6
- Lead
- 8,796
- Total
- 27,985
- vs nation
- R+32.0
- Lead
- 8,761
- Total
- 29,223
- vs nation
- R+38.5
Key facts
- 2024 presidential margin
- R+26.1MIT Election Lab
- Population
- 74,1872024 5-year
- Population density
- 102 / sq mi2024 5-year · TIGER/Line
- Land area
- 731 sq miTIGER/Line
- Median household income
- $78,1662024 5-year
- White (non-Hispanic)
- 77.5%2024 5-year
- Black
- 2.3%2024 5-year
- Hispanic / Latino
- 13.2%2024 5-year
- Peak Democratic margin
- D+20.4 in 1912MIT Election Lab
- Peak Republican margin
- R+59.2 in 1928MIT Election Lab
- Most similar
- State Senate District 27, KS · twin score 94.1
presidential history
Party record book
Kansas 31st 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. Roosevelt1936
54.8%
8,105 votes · D+10.0 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 48.6%
Republican
Herbert Hoover1928
79.2%
9,569 votes · R+59.2 · modeled estimate
Runner-up · Rutherford B. Hayes, 1876 · 74.5%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
13,234votes
36.4% of the vote · R+24.9 · modeled estimate
Runner-up · Kamala Harris, 2024 · 13,014 votes
Republican
Donald Trump2024
22,411votes
62.2% of the vote · R+26.1 · modeled estimate
Runner-up · Donald Trump, 2020 · 22,273 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
Woodrow Wilson1912
+0.9pts D vs U.S.
Place D+20.4 · U.S. D+19.5 · a third-party candidate carried the Place · modeled estimate
Runner-up · James M. Cox, 1920 · −4.6 pts
Republican
Benjamin Harrison1892
+54.6pts R vs U.S.
Place R+52.9 · U.S. D+1.7 · modeled estimate
Runner-up · Herbert Hoover, 1928 · +41.8 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.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | R | 37.6%11,958 | 62.4%19,805 | 31,763 |
Kansas 31st State Senate District sits in the Great Plains. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 20.4 points in 1912 and a Republican high of 59.2 points in 1928. Between 2020 and 2024 the district moved 1.2 points toward the Republican candidate; the 2024 margin was 26.1 points.
A population of 74,187, a 78% non-Hispanic-white share, and a median household income of $78,166 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 27 and State Senate District 26.
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 →
Kansas 31st State Senate District. Akashic. https://akashic.app/sld-upper/20031/. Accessed May 20, 2026. License: CC BY 4.0.