Mark Matthiesen
State Representative, Missouri House District 107 · Republican
OfficeholderOn the 2026 ballotIncumbent · Missouri House District 107 · Nov 3 General
Ballot status source: Listed on the general election ballot for State Representative, District 107
Sources (2)
- Listed on the general election ballot for State Representative, District 107 (Republican) as "Mark Matthiesen" on the Missouri Secretary of State's 2026 General Election Certification of Candidates (Aug 25, 2026)
- the record is filed under this seat but not marked on the ballot. Source · sos.mo.gov
The District
What Missouri House District 107 covers
Covers part of St. Charles County.
Includes O'Fallon (part) and Dardenne Prairie (part).
15 precincts · District lines: State house lines: U.S. Census Bureau (1:500,000 cartographic boundary) · Precinct lines: U.S. Census Bureau, 2020 TIGER/Line voting districts (VTD20)
The 2026 Field
Who else is running for Missouri House District 107
- Gary WesterDemocrat · On the 2026 ballot · Not yet in our records
Not on file for Mark yet: Key Votes, Their Money, Advertising, In Their Words, In the News, Reach Them, Polls, The Paper Trail. Coverage varies by state and office.
File read Sep 24, 2026. Each item names its source. Record ID p_fbwsry6tt.
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