Mahnomen County's estimated 2026 population is 5,065 with a growth rate of -1.71% in the past year according to the most recent United States census data. Mahnomen County is the 82nd largest county in Minnesota. The 2010 population was 5,440 and has seen a growth of -6.89% since that time.
Data after 2023 is projected based on recent change
Overall: 35.4 years
Female: 36.2 years
Male: 34.3 years
There are 3,697 adults, (957 of whom are seniors) in Mahnomen County.
Female: 2,622 (48.9%)
Male: 2,736 (51.1%)
The racial composition of Mahnomen County includes 44.87% White, 34.79% Native American, and smaller percentages for other race, Asian, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 2,404 | 44.87% |
| Native American | 1,864 | 34.79% |
| Two or more races | 1,010 | 18.85% |
| Other race | 37 | 0.69% |
| Asian | 25 | 0.47% |
| Black or African American | 14 | 0.26% |
| Native Hawaiian or Pacific Islander | 4 | 0.07% |
Mahnomen County's average per capita income is $44,805. Household income levels show a median of $59,441. The poverty rate stands at 18.34%.
Name | Median | Mean |
|---|---|---|
| Married Families | $106,136 | $111,204 |
| Families | $72,375 | $85,881 |
| Households | $59,441 | $74,650 |
| Non Families | $37,083 | $43,051 |
Average Income
Median Household Income
Poverty Rate