- Lead
- 4,339
- Total
- 25,985
- vs nation
- D+18.2
Oklahoma 30th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 4,693
- Total
- 27,242
- vs nation
- D+12.8
- Lead
- 293
- Total
- 25,899
- vs nation
- R+1.0
- Lead
- 2,789
- Total
- 25,887
- vs nation
- R+14.6
- Lead
- 3,105
- Total
- 28,081
- vs nation
- R+18.3
- Lead
- 7,993
- Total
- 29,159
- vs nation
- R+25.0
- Lead
- 5,930
- Total
- 23,919
- vs nation
- R+25.3
- Lead
- 4,100
- Total
- 23,688
- vs nation
- R+25.8
Key facts
- 2024 presidential margin
- D+16.7MIT Election Lab
- Population
- 83,7392024 5-year
- Population density
- 3,895 / sq mi2024 5-year · TIGER/Line
- Land area
- 21.5 sq miTIGER/Line
- Median household income
- $50,7152024 5-year
- White (non-Hispanic)
- 43.0%2024 5-year
- Black
- 10.8%2024 5-year
- Hispanic / Latino
- 32.6%2024 5-year
- Peak Democratic margin
- D+36.0 in 1936MIT Election Lab
- Peak Republican margin
- R+51.8 in 1972MIT Election Lab
- Most similar
- State Senate District 46, OK · twin score 96.0
presidential history
Party record book
Oklahoma 30th 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. Roosevelt1936
67.8%
5,590 votes · D+36.0 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · 66.3%
Republican
Richard Nixon1972
74.8%
16,609 votes · R+51.8 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 71.2%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
15,550votes
57.1% of the vote · D+17.2 · modeled estimate
Runner-up · Kamala Harris, 2024 · 14,787 votes
Republican
George W. Bush2004
18,576votes
63.7% of the vote · R+27.4 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 16,964 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
+35.3pts D vs U.S.
Place D+10.1 · U.S. R+25.2 · modeled estimate
Runner-up · James M. Cox, 1920 · +33.5 pts
Republican
Richard Nixon1972
+28.7pts R vs U.S.
Place R+51.8 · U.S. R+23.2 · modeled estimate
Runner-up · Ronald Reagan, 1980 · +27.7 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 |
|---|---|---|---|---|
| 2018 | D | 51.5%12,350 | 48.5%11,652 | 24,002 |
Oklahoma 30th State Senate District sits in the Southern Plains. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 36.0 points in 1936 and a Republican high of 51.8 points in 1972. Between 2020 and 2024 the district moved 0.5 points toward the Republican candidate; the 2024 margin was 16.7 points.
A population of 83,739, a 43% non-Hispanic-white share, and a median household income of $50,715 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 46 and State Senate District 44.
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 30th State Senate District. Akashic. https://akashic.app/sld-upper/40030/. Accessed May 20, 2026. License: CC BY 4.0.