2 candidates are tracked for Missouri House District 103 on the November 3, 2026 ballot: Dave Hinman and Don Crozier. Candidate information follows official St. Charles County election filings; verify with the official election office linked below.
Dave Hinman (Republican), Don Crozier (Democratic) meet on the November 3 ballot; Dave Hinman 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, Dave Hinman, is on the ballot.
Missouri › St. Charles County › Missouri House District 103
Republican Incumbent
Dave Hinman retired in 2021 after 35 years with the QuikTrip Corporation, per his official House biography. He previously served on the O'Fallon City Council, including as council president pro tempore, and as a commissioner on the city's planning and zoning commission. Hinman was first elected to the Missouri House in 2022. No campaign website was found as of September 6, 2026.
Democratic
Per the campaign site.
Don Crozier is a retired aerospace engineer with a background in chemistry and 40 years of residency in St. Charles County, running as the Democratic candidate for Missouri's 103rd House District, per the campaign site.
Who is running for Missouri House District 103 in 2026?
2 candidates are tracked for Missouri House District 103 on the November 3, 2026 ballot: Dave Hinman and Don Crozier. Candidate information follows official St. Charles County election filings; verify with the official election office linked below.
When is the Missouri House District 103 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. Charles 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. Charles 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. Charles County sample ballot and your exact ballot by address.
25 tracked races in St. Charles County, Missouri. Landed here from another county's search? Look up your own ballot below.