Law Enforcement Agencies in Tappan, MI MI › St. Clair County Agencies serving the city of Tappan in MI. Agency Types in Tappan Coroners 1 agencies County Jails 1 agencies Municipal Police 1 agencies Port Of Entry 1 agencies Sheriff 1 agencies All Agencies in Tappan, MI Port Huron Police Department St. Clair County Port of Entry St. Clair County St Clair County Jail St. Clair County St Clair County Medical Examiner Office St. Clair County St Clair County Sheriffs Department St. Clair County
