3 candidates are tracked for Missouri House District 100 on the November 3, 2026 ballot: Philip Oehlerking, Mary Ann Perkins and Ken Newhouse. Candidate information follows official St. Louis County election filings; verify with the official election office linked below.
Philip Oehlerking (Republican), Mary Ann Perkins (Democratic), Ken Newhouse (Libertarian) meet on the November 3 ballot; Philip Oehlerking is the sitting member per the House roster. Missouri has no runoffs; the August 4 primary winner of each party is the nominee, and unopposed nominees still print. The field is the Missouri Secretary of State's certified general election candidate list (certified August 25, 2026). This seat is elected by district; only the district covering your address appears on your ballot.
State legislator. State legislators write and vote on state laws and the state budget, which fund schools, roads, prisons, universities and health programs, and set the rules for local governments and elections. Each member represents one district and serves on committees that shape bills before a floor vote. Terms are two years in most state houses and four in most state senates.
This race. Elected by district: only voters who live in the district see this race on their ballot. The sitting officeholder, Philip Oehlerking, is on the ballot.
Missouri › St. Louis County › Missouri House District 100
Philip Oehlerking previously worked at the Missouri Higher Education Loan Authority (MOHELA) and for the Show-Me Institute, per his official House biography. He is the Republican incumbent for Missouri House District 100. No campaign website was found as of September 6, 2026.
Top priorities
Per the campaign site.
Mary Ann Perkins is a fundraising professional at Washington University in St. Louis who spent more than 15 years working internationally with the United Nations before returning to her hometown in 2021, per the campaign site.
Top priorities
Per the campaign site.
Ken Newhouse is a longtime resident of Ballwin running as the Libertarian nominee for Missouri House District 100, per his campaign website.
Who is running for Missouri House District 100 in 2026?
3 candidates are tracked for Missouri House District 100 on the November 3, 2026 ballot: Philip Oehlerking, Mary Ann Perkins and Ken Newhouse. Candidate information follows official St. Louis County election filings; verify with the official election office linked below.
When is the Missouri House District 100 election in Missouri?
Election Day is Tuesday, November 3, 2026. Registration deadlines, early voting dates and mail ballot rules for Missouri are on the Missouri election hub at theballotbrief.com.
How do I see my exact St. Louis County ballot?
Enter your ZIP code in the lookup at theballotbrief.com for the statewide and congressional races, or a full street address to add the county, city and district contests for that location.
Candidate roster from official St. Louis County and state election office filings, last verified October 2, 2026. Bios and priorities carry their attribution inline.
Cross-check with the official Missouri election office, or see the full St. Louis County sample ballot and your exact ballot by address.
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