Monroe County Jail
Monroe County Jail
County JailMailing Address
[Inmate / Resident Full Name] — [ID if known]
Monroe County Jail
112 S. Court Street, Sparta, WI 54656
Monroe County Jail
112 S. Court Street, Sparta, WI 54656
Physical Address
112 S. Court Street, Sparta, WI 54656
Governing Agency
Monroe County Sheriff's Office
Inmate ID
Inmate / Booking ID — Not required
Last Verified
September 29, 2026
Facility Mailing and Service Information
Use the incarcerated person's full legal name and booking/inmate ID if known. Verify current county detention correspondence rules before sending.
Last verified: September 29, 2026
Verify current photograph size, quantity and content restrictions before sending photographs.
Last verified: September 29, 2026
Verify current publication and package rules before sending books or packages.
Last verified: September 29, 2026
Do not send cash with ordinary correspondence. Use the facility's approved deposit method.
Last verified: September 29, 2026
Verify current visitor approval, identification and scheduling requirements before travel.
Last verified: September 29, 2026
How to Address Your Letter
Use the incarcerated person's full legal name and booking/inmate ID if known. Verify current county detention correspondence rules before sending.
About Monroe County Jail
Monroe County Jail is a Wisconsin county jail, juvenile, pre-trial or correctional-facility record reviewed on 2026-09-29.