Mountrail County's estimated 2026 population is 9,315 with a growth rate of -0.85% 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 20.85% since that time.
Data after 2023 is projected based on recent change
Overall: 35.4 years
Female: 35.5 years
Male: 35.2 years
There are 6,747 adults, (1,285 of whom are seniors) in Mountrail County.
Female: 4,639 (48.8%)
Male: 4,868 (51.2%)
The racial composition of Mountrail County includes 57.69% White, 28.93% 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 | 5,485 | 57.69% |
| Native American | 2,750 | 28.93% |
| Two or more races | 779 | 8.19% |
| Other race | 249 | 2.62% |
| Black or African American | 175 | 1.84% |
| Asian | 54 | 0.57% |
| Native Hawaiian or Pacific Islander | 15 | 0.16% |
Mountrail County's average per capita income is $52,194. Household income levels show a median of $80,717. The poverty rate stands at 14.52%.
Name | Median | Mean |
|---|---|---|
| Married Families | $117,778 | - |
| Families | $100,000 | $121,763 |
| Households | $80,717 | $106,551 |
| Non Families | $61,779 | $79,460 |
Average Income
Median Household Income
Poverty Rate