Oklahoma House District 20
State House District 20
Covers parts of McClain County and Cleveland County.
Who Holds This Seat
Running in 2026
Republican · State Representative
- Ballot
- On the 2026 ballot
- Last Change
- Profile updated · Sep 24
- Raised
- Not on file
- Cash on Hand
- Not on file
No finance filing on record.
Democrat
- Ballot
- Filed for 2026
- Last Change
- Profile updated · Oct 4
- Raised
- Not on file
- Cash on Hand
- Not on file
No finance filing on record.
On File, Not Running
The District
Includes Newcastle, Goldsby, Slaughterville (part), Blanchard (part), Cole, Noble (part), Norman (part) and Washington.
20 precincts · District lines: State house lines: U.S. Census Bureau (1:500,000 cartographic boundary) · Precinct lines: Oklahoma State Election Board precincts (OU Center for Spatial Analysis, Voter Precincts 2020 layer)
Results in This District
| Contest | First | Second | Margin | Votes | Source |
|---|---|---|---|---|---|
| 2024 President20 precinctsOklahoma State Election BoardOfficial — Oklahoma State Election… | Donald J. Trump / Jd Vance (R)14,346 · 75.5% | Kamala D. Harris / Tim Walz (D)4,337 · 22.8% | R+52.7 | 19,000 | Oklahoma State Election BoardOfficial — Oklahoma State Election… |
| 2022 United States Senator20 precinctsOklahoma State Election BoardOfficial — Oklahoma State Election… | James Lankford (R)9,517 · 72.7% | Madison Horn (D)3,083 · 23.6% | R+49.2 | 13,086 | Oklahoma State Election BoardOfficial — Oklahoma State Election… |
| 2022 United States Senator (Unexpired Term)20 precinctsOklahoma State Election BoardOfficial — Oklahoma State Election… | Markwayne Mullin (R)9,159 · 70.1% | Kendra Horn (D)3,518 · 26.9% | R+43.2 | 13,067 | Oklahoma State Election BoardOfficial — Oklahoma State Election… |
| 2022 Governor20 precinctsOklahoma State Election BoardOfficial — Oklahoma State Election… | Kevin Stitt (R)8,357 · 63.8% | Joy Hofmeister (D)4,397 · 33.6% | R+30.2 | 13,103 | Oklahoma State Election BoardOfficial — Oklahoma State Election… |
| 2020 President15 precinctsOklahoma State Election BoardOfficial — Oklahoma State Election… | Donald J. Trump / Michael R. Pence (R)13,388 · 77.5% | Joseph R. Biden / Kamala D. Harris (D)3,531 · 20.4% | R+57.1 | 17,274 | Oklahoma State Election BoardOfficial — Oklahoma State Election… |
| 2020 U.S. Senate15 precinctsOklahoma State Election BoardOfficial — Oklahoma State Election… | Jim Inhofe (R)12,756 · 74.1% | Abby Broyles (D)3,751 · 21.8% | R+52.3 | 17,224 | Oklahoma State Election BoardOfficial — Oklahoma State Election… |
Totals add up the certified precinct results for the precincts inside today's district lines. A precinct split by the district line counts in full, or only in the district holding most of its voters where the linkage assigns it to one, and votes a county reported only countywide (some counties' absentee and early votes) are left out, so totals can differ from an official canvass.
Past Results
State Representative District 20 — Republican primary
2026 Primary Election · Jun 16, 2026| Candidate | Party | Votes | Share |
|---|---|---|---|
| Jonathan WilkRepublican | Republican | 3,488 | 68.8% |
| Mike FullertonRepublican | Republican | 1,581 | 31.2% |
Official results as published by the Oklahoma State Election Board · Oklahoma State Election Board — Official Results, Primary Election
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