- Lead
- 9,025
- Total
- 40,597
- vs nation
- R+20.8
Oklahoma 15th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 8,184
- Total
- 38,646
- vs nation
- R+25.6
- Lead
- 9,705
- Total
- 33,809
- vs nation
- R+30.8
- Lead
- 8,914
- Total
- 27,874
- vs nation
- R+35.8
- Lead
- 9,267
- Total
- 31,011
- vs nation
- R+37.2
- Lead
- 10,263
- Total
- 28,281
- vs nation
- R+33.8
- Lead
- 6,484
- Total
- 21,502
- vs nation
- R+30.7
- Lead
- 3,846
- Total
- 19,603
- vs nation
- R+28.1
Key facts
- 2024 presidential margin
- R+22.2MIT Election Lab
- Population
- 83,5332024 5-year
- Population density
- 251 / sq mi2024 5-year · TIGER/Line
- Land area
- 332 sq miTIGER/Line
- Median household income
- $94,1512024 5-year
- White (non-Hispanic)
- 71.4%2024 5-year
- Black
- 3.2%2024 5-year
- Hispanic / Latino
- 7.6%2024 5-year
- Peak Democratic margin
- D+50.7 in 1932MIT Election Lab
- Peak Republican margin
- R+47.8 in 1984MIT Election Lab
- Most similar
- State Senate District 15, AL · twin score 95.4
presidential history
Party record book
Oklahoma 15th State Senate 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
75.4%
1,539 votes · D+50.7 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 68.5%
Republican
Ronald Reagan1984
73.6%
12,541 votes · R+47.8 · modeled estimate
Runner-up · Richard Nixon, 1972 · 70.9%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Kamala Harris2024
15,353votes
37.8% of the vote · R+22.2 · modeled estimate
Runner-up · Joe Biden, 2020 · 14,736 votes
Republican
Donald Trump2024
24,378votes
60.0% of the vote · R+22.2 · modeled estimate
Runner-up · Donald Trump, 2020 · 22,920 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
John W. Davis1924
+43.6pts D vs U.S.
Place D+18.5 · U.S. R+25.2 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · +32.9 pts
Republican
John McCain2008
+37.2pts R vs U.S.
Place R+29.9 · U.S. D+7.3 · modeled estimate
Runner-up · Mitt Romney, 2012 · +35.8 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 | 40.3%13,689 | 59.7%20,251 | 33,940 |
Oklahoma 15th State Senate District sits in the Southern Plains. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 50.7 points in 1932 and a Republican high of 47.8 points in 1984. Between 2020 and 2024 the district moved 1.1 points toward the Republican candidate; the 2024 margin was 22.2 points.
A population of 83,533, a 71% non-Hispanic-white share, and a median household income of $94,151 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 15 and State Senate District 34.
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 →
Oklahoma 15th State Senate District. Akashic. https://akashic.app/sld-upper/40015/. Accessed May 20, 2026. License: CC BY 4.0.