Otter Tail County is a county in the U.S. state of Minnesota. As of the 2020 census, its population was 60,081. Its county seat is Fergus Falls. Otter Tail County comprises the Fergus Falls micropolitan statistical area. With 1,048 lakes in its borders, Otter Tail County has more lakes than any other county in the United States.
Country: United States
State: Minnesota
Founded: March 18, 1858 (created) · September 12, 1868 (organized)