Oklahoma Senate District 18
State Senate District 18
Covers parts of Canadian County and Oklahoma County.
Who Holds This Seat
Running in 2026
Republican
- 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.
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.
The District
Includes Oklahoma City (part), Yukon (part), Bethany (part) and Woodlawn Park.
25 precincts · District lines: State senate 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 President25 precinctsOklahoma State Election BoardOfficial — Oklahoma State Election… | Donald J. Trump / Jd Vance (R)22,136 · 64.6% | Kamala D. Harris / Tim Walz (D)11,374 · 33.2% | R+31.4 | 34,269 | Oklahoma State Election BoardOfficial — Oklahoma State Election… |
| 2022 United States Senator25 precinctsOklahoma State Election BoardOfficial — Oklahoma State Election… | James Lankford (R)15,608 · 64.5% | Madison Horn (D)7,583 · 31.4% | R+33.2 | 24,187 | Oklahoma State Election BoardOfficial — Oklahoma State Election… |
| 2022 United States Senator (Unexpired Term)25 precinctsOklahoma State Election BoardOfficial — Oklahoma State Election… | Markwayne Mullin (R)14,764 · 61.1% | Kendra Horn (D)8,548 · 35.4% | R+25.7 | 24,164 | Oklahoma State Election BoardOfficial — Oklahoma State Election… |
| 2022 Governor25 precinctsOklahoma State Election BoardOfficial — Oklahoma State Election… | Kevin Stitt (R)13,203 · 54.4% | Joy Hofmeister (D)10,309 · 42.5% | R+11.9 | 24,255 | Oklahoma State Election BoardOfficial — Oklahoma State Election… |
| 2020 President24 precinctsOklahoma State Election BoardOfficial — Oklahoma State Election… | Donald J. Trump / Michael R. Pence (R)21,411 · 67.5% | Joseph R. Biden / Kamala D. Harris (D)9,391 · 29.6% | R+37.9 | 31,728 | Oklahoma State Election BoardOfficial — Oklahoma State Election… |
| 2020 U.S. Senate24 precinctsOklahoma State Election BoardOfficial — Oklahoma State Election… | Jim Inhofe (R)20,426 · 64.6% | Abby Broyles (D)9,684 · 30.6% | R+34.0 | 31,610 | 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 Senator District 18 — Republican primary runoff
2026 Runoff Primary Election · Aug 25, 2026| Candidate | Party | Votes | Share |
|---|---|---|---|
| Tyler HerringRepublican | Republican | 4,355 | 54.8% |
| Jack StewartRepublican | Republican | 3,594 | 45.2% |
Official results as published by the Oklahoma State Election Board · Oklahoma State Election Board — Official Results, Runoff Primary Election
State Senator District 18 — Republican primary
2026 Primary Election · Jun 16, 2026| Candidate | Party | Votes | Share |
|---|---|---|---|
| Jack StewartRepublican | Republican | 3,663 | 45.7% |
| Tyler HerringRepublican | Republican | 2,823 | 35.2% |
| Misty ShannonRepublican | Republican | 1,524 | 19.0% |
Official results as published by the Oklahoma State Election Board · Oklahoma State Election Board — Official Results, Primary Election