The Ballot Brief
Dekalb County, Illinois

DeKalb County Sheriff

One candidate is tracked for DeKalb County Sheriff on the November 3, 2026 ballot: Andrew "Andy" Sullivan. Candidate information follows official Dekalb County election filings; verify with the official election office linked below.

IllinoisDekalb County › DeKalb County Sheriff

No Democratic candidate filed. Andrew "Andy" Sullivan is the Republican nominee and is unopposed on the November 3, 2026 ballot, per the DeKalb County Clerk & Recorder's certified local candidates list.

Andrew "Andy" Sullivan

Republican

Biography
Sullivan is the incumbent DeKalb County Sheriff, appointed in 2021 after 25 years in law enforcement, per the Illinois Sheriffs' Association.

Questions about this race

Who is running for DeKalb County Sheriff in 2026?

One candidate is tracked for DeKalb County Sheriff on the November 3, 2026 ballot: Andrew "Andy" Sullivan. Candidate information follows official Dekalb County election filings; verify with the official election office linked below.

When is the DeKalb 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 Dekalb 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.

Sources
Verify this race
Candidate roster from official Dekalb County and state election office filings. Bios and priorities carry their attribution inline.
Cross-check with the official Illinois election office, or see the full Dekalb County sample ballot and your exact ballot by address.