Law Enforcement Agencies in Crookston, MN MN › Polk County Agencies serving the city of Crookston in MN. Agency Types in Crookston Campus Police 1 agencies County Jails 3 agencies Municipal Police 1 agencies Sheriff 1 agencies All Agencies in Crookston, MN Crookston Police Department Polk County Polk County Sheriffs Office Polk County Tri-County Community Corrections Polk County Tri-County Community Corrections Polk County Tri-County Community Corrections Polk County University of Minnesota Crookston Polk County
