Law Enforcement Agencies in Upper Marlboro, MD MD › Prince George's County Agencies serving the city of Upper Marlboro in MD. Agency Types in Upper Marlboro County Jails 1 agencies Municipal Police 1 agencies Parole Probation 1 agencies Sheriff 2 agencies All Agencies in Upper Marlboro, MD Department of Public Safety & Corrections Services Prince George's County Prince George's County Jail Prince George's County Prince George's County PD Prince George's County Prince George's County Sheriffs Office Prince George's County Upper Marlboro Police Department Prince George's County
