Law Enforcement Agencies in Fergus Falls, MN MN › Otter Tail County Agencies serving the city of Fergus Falls in MN. Agency Types in Fergus Falls Campus Police 1 agencies County Jails 2 agencies Municipal Police 1 agencies Sheriff 1 agencies All Agencies in Fergus Falls, MN Fergus Falls Police Department Otter Tail County MN State Cmnty-Tech College Otter Tail County Otter Tail County Jail Otter Tail County Otter Tail County Jail Otter Tail County Otter Tail County Sheriffs Department Otter Tail County
