- Lead
- 2,479
- Total
- 7,343
- vs nation
- R+32.3
Wyoming 31st State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 2,086
- Total
- 7,317
- vs nation
- R+33.0
- Lead
- 2,192
- Total
- 6,567
- vs nation
- R+35.5
- Lead
- 1,487
- Total
- 6,059
- vs nation
- R+28.4
- Lead
- 1,299
- Total
- 6,391
- vs nation
- R+27.6
- Lead
- 1,800
- Total
- 5,838
- vs nation
- R+28.4
- Lead
- 1,368
- Total
- 5,099
- vs nation
- R+27.3
- Lead
- 400
- Total
- 4,781
- vs nation
- R+16.9
Key facts
- 2024 presidential margin
- R+33.8MIT Election Lab
- Population
- 18,2732024 5-year
- Population density
- 150 / sq mi2024 5-year · TIGER/Line
- Land area
- 122 sq miTIGER/Line
- Median household income
- $82,9032024 5-year
- White (non-Hispanic)
- 72.6%2024 5-year
- Black
- 2.4%2024 5-year
- Hispanic / Latino
- 17.2%2024 5-year
- Peak Democratic margin
- D+32.0 in 1964MIT Election Lab
- Peak Republican margin
- R+73.5 in 1892MIT Election Lab
- Most similar
- State Senate District 5, WY · twin score 91.9
presidential history
Party record book
Wyoming 31st State Senate District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 · 34 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Lyndon B. Johnson1964
66.0%
2,430 votes · D+32.0 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 64.2%
Republican
Benjamin Harrison1892
73.5%
272 votes · R+73.5 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · 69.7%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
2,471votes
38.7% of the vote · R+20.3 · modeled estimate
Runner-up · Joe Biden, 2020 · 2,462 votes
Republican
Donald Trump2024
4,822votes
65.7% of the vote · R+33.8 · modeled estimate
Runner-up · Donald Trump, 2020 · 4,548 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
Harry S. Truman1948
+11.1pts D vs U.S.
Place D+15.6 · U.S. D+4.5 · modeled estimate
Runner-up · Adlai Stevenson, 1956 · +9.6 pts
Republican
Benjamin Harrison1892
+75.2pts R vs U.S.
Place R+73.5 · U.S. D+1.7 · modeled estimate
Runner-up · Donald Trump, 2016 · +35.5 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 | 32.2%2,331 | 67.8%4,898 | 7,229 |
| 2020 | R | 33.4%2,507 | 66.6%4,998 | 7,505 |
Wyoming 31st State Senate District sits in the Northern Rockies. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 32.0 points in 1964 and a Republican high of 73.5 points in 1892. Between 2020 and 2024 the district moved 5.3 points toward the Republican candidate; the 2024 margin was 33.8 points.
A population of 18,273, a 73% non-Hispanic-white share, and a median household income of $82,903 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 5 and State Senate District 20.
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 →
Wyoming 31st State Senate District. Akashic. https://akashic.app/sld-upper/56031/. Accessed May 20, 2026. License: CC BY 4.0.