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.
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