Law Enforcement Agencies in Rockville, MD MD › Montgomery County Agencies serving the city of Rockville in MD. Agency Types in Rockville Adult Institutions 1 agencies Campus Police 1 agencies County Jails 1 agencies Municipal Police 1 agencies Parole Probation 1 agencies Sheriff 1 agencies State Police 2 agencies All Agencies in Rockville, MD Juvenile Probation Montgomery County Maryland State Police Prince George's County Maryland State Police Montgomery County Montgomery College Montgomery County Montgomery County Detention Center Montgomery County Montgomery County Pre-Release Center Montgomery County Montgomery County Sheriffs Office Montgomery County Rockville City Police Department Montgomery County
