Ottertail is a city in Otter Tail County, Minnesota, United States.

[3] Ottertail was platted in 1903, and named for nearby Otter Tail Lake.

[6] "Otter Tail" City appeared on the United States Census as early as 1860.

Winters are long and very cold and nights average subzero Fahrenheit.

Summers are warm but frequently that weather gets broken up by convective rainfall.

The racial makeup of the city was 99.0% White, 0.2% Native American, and 0.9% from two or more races.

24.9% of all households were made up of individuals, and 8.6% had someone living alone who was 65 years of age or older.