Otter Tail County's estimated 2026 population is 61,124 with a growth rate of 0.14% in the past year according to the most recent United States census data. Otter Tail County is the 17th largest county in Minnesota. The 2010 population was 57,291 and has seen a growth of 6.69% since that time.
Data after 2023 is projected based on recent change
Overall: 46.2 years
Female: 47.4 years
Male: 45.1 years
There are 47,338 adults, (15,374 of whom are seniors) in Otter Tail County.
Female: 29,948 (49.5%)
Male: 30,527 (50.5%)
The racial composition of Otter Tail County includes 91.23% White, and smaller percentages for other race, Black or African American, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 55,169 | 91.23% |
| Two or more races | 2,996 | 4.95% |
| Other race | 1,144 | 1.89% |
| Black or African American | 658 | 1.09% |
| Asian | 349 | 0.58% |
| Native American | 140 | 0.23% |
| Native Hawaiian or Pacific Islander | 19 | 0.03% |
Otter Tail County's average per capita income is $48,310. Household income levels show a median of $72,255. The poverty rate stands at 8.73%.
Name | Median | Mean |
|---|---|---|
| Married Families | $102,760 | $121,192 |
| Families | $94,539 | $112,349 |
| Households | $72,255 | $92,523 |
| Non Families | $37,173 | $51,750 |
Average Income
Median Household Income
Poverty Rate