- Lead
- 5,048
- Total
- 11,643
- vs nation
- R+41.9
Oklahoma 40th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 5,375
- Total
- 12,264
- vs nation
- R+48.3
- Lead
- 5,372
- Total
- 12,050
- vs nation
- R+46.7
- Lead
- 5,020
- Total
- 11,134
- vs nation
- R+48.9
- Lead
- 5,552
- Total
- 12,790
- vs nation
- R+50.7
- Lead
- 6,101
- Total
- 13,301
- vs nation
- R+43.4
- Lead
- 3,924
- Total
- 12,623
- vs nation
- R+31.6
- Lead
- 1,483
- Total
- 12,923
- vs nation
- R+20.0
Key facts
- 2024 presidential margin
- R+43.4MIT Election Lab
- Population
- 39,2582024 5-year
- Population density
- 2,193 / sq mi2024 5-year · TIGER/Line
- Land area
- 17.9 sq miTIGER/Line
- Median household income
- $59,3112024 5-year
- White (non-Hispanic)
- 62.4%2024 5-year
- Black
- 3.2%2024 5-year
- Hispanic / Latino
- 17.9%2024 5-year
- Peak Democratic margin
- D+29.6 in 1932MIT Election Lab
- Peak Republican margin
- R+55.7 in 1972MIT Election Lab
- Most similar
- State House District 59, OK · twin score 95.8
presidential history
Party record book
Oklahoma 40th State House District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1908–2024 · 30 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Franklin D. Roosevelt1932
64.8%
6,930 votes · D+29.6 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 63.1%
Republican
Richard Nixon1972
76.7%
10,669 votes · R+55.7 · modeled estimate
Runner-up · Herbert Hoover, 1928 · 75.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Franklin D. Roosevelt1936
7,181votes
63.1% of the vote · D+26.8 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · 6,930 votes
Republican
Ronald Reagan1984
10,816votes
74.1% of the vote · R+48.8 · modeled estimate
Runner-up · Richard Nixon, 1972 · 10,669 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
William J. Bryan1908
+13.7pts D vs U.S.
Place D+4.1 · U.S. R+9.6 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · +11.8 pts
Republican
John McCain2008
+50.7pts R vs U.S.
Place R+43.4 · U.S. D+7.3 · modeled estimate
Runner-up · Mitt Romney, 2012 · +48.9 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 |
|---|---|---|---|---|
| 2020 | R | 20.0%2,819 | 80.0%11,247 | 14,066 |
With a 2024 presidential margin of R+43.4 across roughly 39,000 residents, this district ranks among the most reliably one-sided state house seats in Oklahoma, reflecting a rural or small-city electorate with deeply entrenched voting patterns.
Across the recorded series it reached a Democratic high of 29.6 points in 1932 and a Republican high of 55.7 points in 1972. The 2024 margin was 43.4 points.
A population of 39,258, a 62% non-Hispanic-white share, and a median household income of $59,311 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 59 and State House District 57.
The state-house 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 →
Oklahoma 40th State House District. Akashic. https://akashic.app/sld-lower/40040/. Accessed May 20, 2026. License: CC BY 4.0.