St. Louis

O'Fallon Voters Toss Out City Hall Regulars in Local Election Shakeup

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Published on April 08, 2026
O'Fallon Voters Toss Out City Hall Regulars in Local Election ShakeupSource: Wikipedia/Phil Roeder from Des Moines, IA, USA, CC BY 2.0, via Wikimedia Commons

O'Fallon voters sent a pointed message at the polls on Tuesday, tossing two sitting council members from office and leaving a third clinging to a narrow lead after a late write-in push. The results reshuffled several ward seats on the 10-member City Council and started a short, paperwork-heavy sprint toward county verification and certification.

Local coverage reported that two incumbents lost their seats and that a third trailed in the unofficial tally, a result widely read as a reaction to recent city decisions and simmering frustration over how O'Fallon is growing and spending. As reported by the St. Louis Post-Dispatch, the outcome ranks among the sharper turnovers in recent O'Fallon elections.

Official tallies

Unofficial counts from St. Charles County show Tom "Duke" Herweck defeating Lisa Thompson 527 to 474 in Ward 2. In Ward 1, Deana Smith prevailed with 572 votes, while Dale Kling captured the full-term Ward 3 seat with 669 votes.

The county numbers also show Nathan Bibb winning the unexpired Ward 3 term with 489 votes. Jim Ottomeyer held onto Ward 4, and Debbie Cook kept her Ward 5 seat with 815 votes, according to the same tally.

Voter concerns and reaction

Voters interviewed at polling places cited a familiar mix of local worries: rapid development, city spending and recent council decisions that did not sit well with some neighborhoods. A photo accompanying election-night coverage showed George Cargill carefully reviewing his ballot at O'Fallon City Hall, a small snapshot of just how closely some residents were watching these races, according to the St. Louis Post-Dispatch.

What happens next

The St. Charles County Election Authority has its usual post-election routine queued up, including a hand-count audit and a verification board meeting before the results can be certified. County officials note that certification will follow those checks, and that any recounts or formal challenges must follow state procedures, per the St. Charles County Election Authority.

Once the results are certified, the newly elected councilmembers will be sworn in, potentially shifting votes on pending local measures and development proposals already in the pipeline. This story will be updated with certified totals and additional reaction as the county finishes its post-election process.