2 candidates are tracked for Missouri House District 66 on the November 3, 2026 ballot: Laura Mitchell-Riley and Marlene Terry. Candidate information follows official St. Louis County election filings; verify with the official election office linked below.
Laura Mitchell-Riley (Republican), Marlene Terry (Democratic) meet on the November 3 ballot; Marlene Terry 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, Marlene Terry, is on the ballot.
Missouri › St. Louis County › Missouri House District 66
Top priorities
Per the campaign site.
Laura Mitchell-Riley graduated from Saint Louis University in 2001 with a degree in Liberal Studies and received a Master's degree in Professional Counseling in 2011, per her campaign website. She previously ran for Missouri's 1st Congressional District in 2022 and 2024. She is the Republican nominee for Missouri House District 66.
Marlene Terry worked as an accounting clerk for BJC Healthcare for 20 years before entering the legislature, per her official House biography. She was the first African American elected to the Riverview Gardens School Board and later served as its president. She is the Democratic incumbent for Missouri House District 66. No campaign website was found as of September 6, 2026.
Who is running for Missouri House District 66 in 2026?
2 candidates are tracked for Missouri House District 66 on the November 3, 2026 ballot: Laura Mitchell-Riley and Marlene Terry. Candidate information follows official St. Louis County election filings; verify with the official election office linked below.
When is the Missouri House District 66 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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