Sun Prairie, WI Curfew Laws: Juvenile Curfew (2026)

m. on Friday and Saturday nights. A minor found in a public place during those hours without a parent, guardian, or lawful custodian is presumed to be there unlawfully. The ordinance exempts a minor running an errand for a parent or guardian, one on their own property, one whose job requires being out, or one returning home from a supervised school, church, or civic event, though a minor still cannot loiter or sit in a parked car under those exceptions. Parents and guardians who allow a violation after being warned once by a law enforcement officer face liability, and a parent who has filed a missing-person report is not held responsible.

Any owner or operator of a place of amusement, entertainment, or refreshment must order a minor found loitering there during curfew hours to leave, and must call the Sun Prairie Police Department if the minor refuses. Officers may detain a minor until a parent or guardian is notified and reports to the police department to take custody. The city must give a first-time written or registered-mail warning before any penalty attaches to a parent or guardian for a later violation.