Waukesha County Sheriff

What this office does

The county's chief law-enforcement officer. Runs the sheriff's office and usually the county jail, patrols areas outside city police departments, and serves court papers.

Immigration enforcement (ICE 287(g))

Waukesha County's sheriff's office has 2 agreements with U.S. Immigration and Customs Enforcement (ICE) under the 287(g) program: Jail Enforcement Model (signed June 10, 2020); Warrant Service Officer (signed May 13, 2025).

• Jail Enforcement Model: identifying and processing people booked into the county jail on state or local charges who may be removable.
• Warrant Service Officer: serving ICE administrative warrants on people already held in the county jail.

Under 287(g), ICE trains and authorizes local officers to carry out some federal immigration duties. From ICE's list of participating agencies, as of October 28, 2026. Whether to keep, change or end an agreement is up to the sheriff.

Candidates

Built from the official primary results; independent or write-in candidates may also be on your ballot.

Quick answers

Who is running for Waukesha County Sheriff in 2026?

Nick Ollinger (Republican).

What does this office do?

The county's chief law-enforcement officer. Runs the sheriff's office and usually the county jail, patrols areas outside city police departments, and serves court papers.

Who should I vote for in the Waukesha County Sheriff race?

SpectrumVote doesn't endorse anyone or tell you how to vote. Compare each candidate's record, funding, outside spending and endorsements on this page, then decide based on the issues that matter most to you. Enter your address at spectrumvote.com to see this race next to everything else on your ballot.

When is the election?

The general election is Tuesday, November 3, 2026. Early voting and mail-ballot deadlines vary by state; check your state or county election office.