Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. The jail figures are from the Vera Institute of Justice's Incarceration Trends data. Every office link was opened and checked against the office's own site on September 23, 2026.
Keweenaw County, Michigan, has about 2,200 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Keweenaw County is held at the county jail, run by the Keweenaw County Sheriff's Office, and the jail's record of each person held is a public record. This guide says where to look for someone in custody, what the jail holds and who books people into it.
This guide covers the search, the jail, who books people, state prison and common questions.
Related guides: Keweenaw County public records, Keweenaw County arrest records, Keweenaw County warrants, Keweenaw County criminal records, Keweenaw County court records, Michigan arrest records and Michigan inmate search.
Finding Someone in Custody in Keweenaw County
A person kept in custody after an arrest in Keweenaw County is held at the county jail, run by the Keweenaw County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the jail page of the Keweenaw County Sheriff's Office at keweenawcountyonline.org/department-sheriff.php (page title: Keweenaw County Sheriff's Office), phone 906-337-0528, 5105 Fourth Street Eagle River, MI 49950, which answered when SearchSystems opened it on September 23, 2026.
That page is the office's jail information page rather than a roster, so a search for a particular person goes through the office at 906-337-0528.
The Keweenaw County Jail by the Numbers
On an average day in 2016 the jail held about 3 people. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Keweenaw County has about 2,200 residents (2024 Census Bureau estimate), so the jail holds about 15 people for every 10,000 residents.
Who Books People Into the Keweenaw County Jail
The Keweenaw County Sheriff's Office makes the arrests that end in a booking in Keweenaw County.
The FBI's agency list also places one more agency in Keweenaw County: the Keweenaw County State Police (state police).
The Keweenaw County Sheriff's Office reported 31 arrests to the FBI for 2025. Those kept in custody were booked into the county jail; a person cited and released at the scene was not.
The counts, agency by agency and year by year, are in Keweenaw County arrest records.
From the Jail to State Prison
The jail holds people awaiting trial and people serving short sentences. A person sentenced to prison in Keweenaw County serves the sentence in a facility of the Michigan Department of Corrections, whose inmate locator is at mdocweb.state.mi.us/otis2.
Frequently Asked Questions
How do I find an inmate in Keweenaw County?
Ask the Keweenaw County Sheriff's Office at 906-337-0528; its jail page SearchSystems verified is at keweenawcountyonline.org.
How many people are in the Keweenaw County jail?
About 3 on an average day in 2016, the latest year in the Vera Institute's jail data.
What is the phone number for the Keweenaw County jail?
906-337-0528, the number on the page of the Keweenaw County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in Keweenaw County go?
To a facility of the Michigan Department of Corrections; its inmate locator is at mdocweb.state.mi.us/otis2.
Is this the official Keweenaw County website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official county, court and state offices described above and does not hold records, charge for them or take requests.