Oklahoma 18th State Senate District
Presidential margin, 2004–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 2004 | −53.9% |
| 2008 | −47.5% |
| 2012 | −50.4% |
| 2016 | −43.8% |
| 2020 | −33.8% |
| 2024 | −31.2% |
| Year | Won | Democratic | Republican | Other | Margin | Swing | vs U.S. | Total |
|---|---|---|---|---|---|---|---|---|
| R | 33.3%Harris11,846 | 64.5%Trump22,927 | 2.2% | R+31.2 | D+2.6 | R+29.7 | 35,556 | |
| R | 31.6%Biden10,293 | 65.4%Trump21,291 | 2.9% | R+33.8 | D+10.0 | R+38.2 | 32,544 | |
| R | 24.6%Clinton7,308 | 68.4%Trump20,319 | 7.0% | R+43.8 | D+6.6 | R+45.9 | 29,722 | |
| R | 24.8%Obama6,418 | 75.2%Romney19,471 | — | R+50.4 | R+3.0 | R+54.3 | 25,889 | |
| R | 26.1%Obama7,192 | 73.5%McCain20,293 | 0.4% | R+47.5 | D+6.5 | R+54.7 | 27,603 | |
| R | 23.0%Kerry5,990 | 77.0%Bush20,007 | 0.0% | R+53.9 | — | R+51.5 | 25,997 |
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
With a 2024 presidential margin of R+61.5, this district ranks among the most reliably one-sided in the state. Its rural character and low population density have made competitive general elections essentially nonexistent in recent cycles.
Across the recorded series it reached a Republican high of 53.9 points in 2004. Between 2020 and 2024 the district moved 2.6 points toward the Democratic candidate; the 2024 margin was 31.2 points.
A population of 84,411, a 64% non-Hispanic-white share, and a median household income of $77,443 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 24 and State Senate District 36.
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.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Oklahoma 18th State Senate District. Akashic. https://akashic.app/sld-upper/40018/. Accessed May 20, 2026. License: CC BY 4.0.