- Lead
- 7,772
- Total
- 36,931
- vs nation
- R+19.6
Oklahoma 42nd State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 7,618
- Total
- 37,506
- vs nation
- R+24.8
- Lead
- 10,566
- Total
- 33,917
- vs nation
- R+33.2
- Lead
- 9,838
- Total
- 30,968
- vs nation
- R+35.6
- Lead
- 10,703
- Total
- 33,695
- vs nation
- R+39.0
- Lead
- 11,701
- Total
- 32,297
- vs nation
- R+33.8
- Lead
- 8,908
- Total
- 26,403
- vs nation
- R+34.3
- Lead
- 6,657
- Total
- 25,905
- vs nation
- R+34.2
Key facts
- 2024 presidential margin
- R+21.0MIT Election Lab
- Population
- 82,6972024 5-year
- Population density
- 690 / sq mi2024 5-year · TIGER/Line
- Land area
- 120 sq miTIGER/Line
- Median household income
- $72,2102024 5-year
- White (non-Hispanic)
- 61.6%2024 5-year
- Black
- 13.6%2024 5-year
- Hispanic / Latino
- 8.1%2024 5-year
- Peak Democratic margin
- D+27.4 in 1936MIT Election Lab
- Peak Republican margin
- R+58.6 in 1972MIT Election Lab
- Most similar
- State Senate District 47, OK · twin score 94.1
presidential history
Party record book
Oklahoma 42nd 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
63.3%
5,403 votes · D+27.4 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · 61.9%
Republican
Richard Nixon1972
78.1%
19,662 votes · R+58.6 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 74.8%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
14,430votes
38.5% of the vote · R+20.3 · modeled estimate
Runner-up · Kamala Harris, 2024 · 14,195 votes
Republican
John McCain2008
22,199votes
65.9% of the vote · R+31.8 · modeled estimate
Runner-up · Donald Trump, 2020 · 22,048 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
+26.6pts D vs U.S.
Place D+1.4 · U.S. R+25.2 · modeled estimate
Runner-up · James M. Cox, 1920 · +24.3 pts
Republican
John McCain2008
+39.0pts R vs U.S.
Place R+31.8 · U.S. D+7.3 · modeled estimate
Runner-up · Mitt Romney, 2012 · +35.6 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%12,196 | 48.5%11,507 | 23,703 |
Oklahoma 42nd State Senate District sits in the Southern Plains. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 27.4 points in 1936 and a Republican high of 58.6 points in 1972. Between 2020 and 2024 the district moved 0.7 points toward the Republican candidate; the 2024 margin was 21.0 points.
A population of 82,697, a 62% non-Hispanic-white share, and a median household income of $72,210 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 47 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 42nd State Senate District. Akashic. https://akashic.app/sld-upper/40042/. Accessed May 20, 2026. License: CC BY 4.0.