Illinois › Williamson County › Williamson County Sheriff
No Democratic candidate filed. Jeff Diederich won a contested three-way Republican primary on March 17, 2026 with 3,927 votes, ahead of Quinn Laird (2,760) and Stan Diggs (2,543), per the county's certified Enhanced Voting results, and is unopposed on the November 3, 2026 ballot.
Biography
Jeff Diederich appears on the November 3, 2026 ballot for Williamson County Sheriff, per the county clerk's certified November 3, 2026 candidate list.
Questions about this race
Who is running for Williamson County Sheriff in 2026?
One candidate is tracked for Williamson County Sheriff on the November 3, 2026 ballot: Jeff Diederich. Candidate information follows official Williamson County election filings; verify with the official election office linked below.
When is the Williamson County Sheriff election in Illinois?
Election Day is Tuesday, November 3, 2026. Registration deadlines, early voting dates and mail ballot rules for Illinois are on the Illinois election hub at theballotbrief.com.
How do I see my exact Williamson 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.
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