- Otter Tail County, Minnesota (data.census.gov)
Otter Tail County, Minnesota has 1,971.6 square miles of land area and is the 7th largest county in Minnesota by total area. Otter Tail County, Minnesota is bordered by Becker County, Minnesota, Wadena County, Minnesota, Todd County, Minnesota, Wilkin County, Minnesota, Douglas County, Minnesota, Clay County, Minnesota, and Grant County, Minnesota.
- Otter Tail County, Minnesota (Wikipedia)
Otter Tail County is a county in the U.S. state of Minnesota. As of the 2020 census, the population was 60,081, and it was estimated at 61,041 in 2025. The county seat and the largest city is Fergus Falls.