This is a private reference website, not a sheriff's office, jail, court, or records unit. We cannot confirm whether someone is in custody, release anyone, post bond, retrieve official booking records, or change a government record. Use the official offices and portals below for those tasks.
Official Fond du Lac County Contacts
For current custody and sheriff records, start with the Fond du Lac County Sheriff's Office or jail line. Records hours are 8:00 AM to 4:00 PM Monday through Friday, excluding holidays.
Fond du Lac County Sheriff's Office180 S. Macy Street
Fond du Lac, WI 54935
Mailing: PO Box 1273, Fond du Lac, WI 54936-1273
Non-emergency: (920) 929-3390
Administrative and open records: (920) 929-3370
Jail: (920) 929-3394
Juvenile detention: (920) 929-3398
New incident, accident, and dispatch requests after June 1, 2026 should be submitted through the Fond du Lac County Sheriff's Office Open Records Portal, which provides a tracking number. Mail or in-person records requests should include the incident date, approximate time, case number, involved person or investigating deputy, and requester contact information.
Fond du Lac County District Attorney's OfficeCity-County Government Center
160 South Macy Street
Fond du Lac, WI 54935
Phone: (920) 929-3048
Hours: Monday-Friday, 8:00 AM-4:30 PM
Use these routes according to the record or custody question you are trying to answer.
- For a person currently held in the county jail, use the official roster steps on jail inmate records or call the jail at (920) 929-3394.
- For booking-photo questions, see jail roster mugshots and use the sheriff open-records process when a photo is not shown online.
- For formal charges after an arrest, use court records after a jail arrest, WCCA, or the District Attorney's Office when appropriate.
- For facility-specific visiting, phone, or address details, use the detention facility pages listed in the footer.
- For someone sentenced to Wisconsin DOC custody, use the Wisconsin Department of Corrections Offender Locator.
- For custody and case notifications, use Wisconsin VINE.
- For federal or immigration custody, use the BOP inmate locator or ICE Online Detainee Locator System.