County Executive
County- Steve Ehlmann (Republican) Incumbent
- Bill Eigel (Republican)
- Jason Law (Republican)
- Arnie "AC" Dienoff (Republican)
- David Veneziano (Democratic)
Missouri › St Charles County › O'Fallon
O'Fallon, Missouri sample ballot 2026
O'Fallon voters (St Charles County, Missouri) see Auditor plus 7 St Charles County races on the November 3, 2026 ballot. Your U.S. House district and any precinct-level races depend on your street address.
See your exact O'Fallon ballot
St Charles County races on every O'Fallon ballot
County Assessor
County- Travis Welge (Republican) Incumbent
Collector of Revenue
County- Michelle D. McBride (Republican) Incumbent
- Erica Bridges (Republican)
Director of Elections
County- Kurt Bahr (Republican) Incumbent
- Jen Olson (Republican)
- Carl Herman Freese (Libertarian)
Prosecuting Attorney
County- Joseph G. McCulloch (Republican) Incumbent
Recorder of Deeds
County- Mary E. Dempsey (Republican)
Sheriff
County- Scott A. Lewis (Republican)
Full candidate profiles, priorities and campaign sites are on the St Charles County page.
Statewide races on every O'Fallon ballot
Auditor
Statewide- Scott Fitzpatrick (Republican) Incumbent
- Quentin Wilson (Democratic)
- Greg Upchurch (Democratic)
- Jerry Wistrand (Republican)
- Dustin Coffell (Libertarian)
Missouri voters also decide 7 statewide ballot measures.
Sample ballot by ZIP code in O'Fallon
City boundaries and ZIP codes from the U.S. Census Bureau (2024 Gazetteer, 2020 ZCTA relationships). Candidate fields follow official election office filings; confirm with the Missouri election office before voting.