Mountrail County's estimated 2025 population is 9,667 with a growth rate of 1.49% in the past year according to the most recent United States census data. Mountrail County is the 16th largest county in North Dakota. The 2010 population was 7,708 and has seen a growth of 25.42% since that time.
Data after 2023 is projected based on recent change
The racial composition of Mountrail County includes 59.84% White, 29.04% Native American, and smaller percentages for other race, Black or African American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.
White
Native American
Two or more races
Other race
Black or African American
Asian
Native Hawaiian or Pacific Islander
Race | Population | Percentage (of total) |
|---|---|---|
| White | 5,725 | 59.84% |
| Native American | 2,778 | 29.04% |
| Two or more races | 576 | 6.02% |
| Other race | 211 | 2.21% |
| Black or African American | 192 | 2.01% |
| Asian | 70 | 0.73% |
| Native Hawaiian or Pacific Islander | 15 | 0.16% |
Married
Widowed
Divorced
Separated
Never Married
Mountrail County's average per capita income is $53,814. Household income levels show a median of $81,292. The poverty rate stands at 13.16%.
Name | Median | Mean |
|---|---|---|
| Married Families | $110,208 | - |
| Families | $97,837 | $119,637 |
| Households | $81,292 | $102,926 |
| Non Families | $65,208 | $76,138 |
Average Income
Median Household Income
Poverty Rate