The Ballot Brief
St. Charles County, Missouri

County Executive

Ehlmann and Veneziano are on the November 3, 2026 ballot. Names follow official St. Charles County election filings.

About this race

August 4 primary result: Steve Ehlmann (47.8 percent) won the Republican nomination over Bill Eigel (31.7 percent), Jason Law (19.1 percent), Arnie "AC" Dienoff (1.4 percent) and advances to the November 3 ballot, per graphics.stltoday.com reporting of the official results (re-verify against the certified canvass).

What this office does

County commissioner. The county board is the county's legislative and, in most states, executive body. Commissioners adopt the county budget and property tax rate, oversee roads, the jail, public health, planning and zoning in unincorporated areas, and appoint or confirm department heads. In counties with an elected county executive or judge, the board's role is mainly the budget and ordinances.

This race. Every voter in St. Charles County votes on this seat. The sitting officeholder, Steve Ehlmann, is on the ballot.

We use AI to research and write election information. Errors are possible. Verify important details with official sources.

Missouri › St. Charles County › County Executive

Steve Ehlmann

RepublicanIncumbent

Top priorities

From other published sources

  • Keep the county real property tax rate at zero for an 11th year, per his voter-guide response
  • Complete jail expansion, a drug treatment center, and parks projects, per his response
  • Complete I-64 and I-70 improvements and a regional law enforcement training center, per his response
Biography

Ehlmann was elected St. Charles County Executive in November 2006 and previously served St. Charles County as a State Representative, a State Senator, a Circuit Judge and the county's Director of Administration, per the campaign site. He earned a bachelor's degree from Furman University, a master's degree from the University of Missouri-Columbia, and a law degree from Washington University in St. Louis, and has also worked as a teacher and coach in public schools.

Campaign site (opens in a new tab)

David Veneziano

Democratic

Top priorities

From other published sources

  • Housing reform including renter protections, per his voter-guide response
  • Term-limit and campaign-finance reform for county offices, per his response
  • Regional cooperation with neighboring counties, per his response
Biography

Unopposed on the Democratic side. He holds a physics degree and an MBA and has spent about twenty years in biotechnology manufacturing quality roles, currently as site quality head at a nonprofit blood-testing lab, per his voter-guide submission. No campaign website was found as of September 8, 2026.

Next on your ballotCounty Council District 1

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Questions about this race

Who is running for County Executive in 2026?

2 candidates are tracked for County Executive on the November 3, 2026 ballot: Steve Ehlmann and David Veneziano. Candidate information follows official St. Charles County election filings; verify with the official election office linked below.

When is the County Executive 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.

Verify this race

Candidate roster from official St. Charles County and state election office filings, last verified October 16, 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.

The rest of your St. Charles County ballot

25 tracked races in St. Charles County, Missouri. Landed here from another county's search? Look up your own ballot below.

Also on your ballot
County Council District 3County Council District 5County Council District 7See all 25 St. Charles County races
Candidate profiles
Steve Ehlmann, full profileDavid Veneziano, full profileOfficial Missouri election office