Missouri Senate District 3
State Senate District 3
Covers all of Washington County, Crawford County, Ste. Genevieve County and St. Francois County; part of Jefferson County.
Who Holds This Seat
Running in 2026
No 2026 candidates are on file for this seat yet.
The District
Includes Park Hills, Farmington, Terre du Lac, De Soto, Goose Creek Lake, Grayhawk, Ozora, Bloomsdale, Bonne Terre, Cuba, Desloge, Doe Run and 27 more.
Precinct breakdown not available for this district yet.
90 precincts · District lines: State senate lines: U.S. Census Bureau (1:500,000 cartographic boundary) · Precinct lines: U.S. Census Bureau, 2020 TIGER/Line voting districts (VTD20)
Past Results
State Senator District 3
2024 General Election · Nov 5, 2024| Candidate | Party | Votes | Share |
|---|---|---|---|
| Mike HendersonRepublican | Republican | 16,744 | 72.8% |
| Doug HalbertDemocrat | Democrat | 6,252 | 27.2% |
Official — Missouri Secretary of State, Official Results as certified by the Board of State Canvassers · Missouri Secretary of State — Official Results by County
State Senator District 3
2020 General Election · Nov 3, 2020| Candidate | Party | Votes | Share |
|---|---|---|---|
| Elaine Freeman Gannon | 20,578 | 100.0% |
Official — Missouri Secretary of State, Official Results as certified by the Board of State Canvassers · Missouri Secretary of State — Official Results by County