Missouri › St Charles County › Missouri House District 103
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.
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 or questionnaire response was found as of September 6, 2026.
Democratic
Don Crozier is a chemist and retired aerospace engineer who has lived in St. Charles County for 40 years, per his campaign website. He and his wife have two children and three grandchildren.
Source: candidate campaign site, roster verified 2026-09-06.
Campaign site →