Law Enforcement Agencies in Gerrish, NH NH › Merrimack County Agencies serving the city of Gerrish in NH. Agency Types in Gerrish County Jails 1 agencies Municipal Police 2 agencies Sheriff 1 agencies All Agencies in Gerrish, NH Boscawen Police Department Merrimack County Merrimack County Department of Crrctns Merrimack County Merrimack County Sheriffs Office Merrimack County Webster Police Department Merrimack County
