Marquette County Juvenile Detention
Marquette County Juvenile Detention
Juvenile Detention / Placement RecordMailing Address
[Inmate / Resident Full Name] — [ID if known]
Marquette County Juvenile Detention
P.O. Box 405, Montello, WI 53949
Marquette County Juvenile Detention
P.O. Box 405, Montello, WI 53949
Physical Address
Montello, WI 53949
Governing Agency
Marquette County
Inmate ID
Youth / Resident ID — Not required
Last Verified
September 29, 2026
Facility Mailing and Service Information
Confirm the youth's current placement and current juvenile correspondence rules before mailing.
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
Confirm the youth's current placement and current juvenile correspondence rules before mailing.
About Marquette County Juvenile Detention
Marquette County Juvenile Detention is a Wisconsin county jail, juvenile, pre-trial or correctional-facility record reviewed on 2026-09-29.