McKenzie County's 2026 population is estimated at 15,782, reflecting a 3.27% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). McKenzie County is the 10th largest county in North Dakota. The 2010 population was 6,412 and has grown 146.13% since 2010.
Data after 2023 is projected based on recent change
Overall: 31.5 years
Female: 31.2 years
Male: 31.7 years
There are 9,871 adults, (1,336 of whom are seniors) in McKenzie County.
Female: 6,644 (46.4%)
Male: 7,677 (53.6%)
The racial composition of McKenzie County includes 78.14% White, 8.24% Native American, and smaller percentages for Black or African American, other race, Asian and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 11,191 | 78.14% |
| Two or more races | 1,266 | 8.84% |
| Native American | 1,180 | 8.24% |
| Black or African American | 276 | 1.93% |
| Other race | 246 | 1.72% |
| Asian | 162 | 1.13% |
McKenzie County 's average per capita income is $70,304. Household income levels show a median of $93,404. The poverty rate stands at 11.96%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $141,363 | - |
| Families | $121,118 | $160,642 |
| Households | $93,404 | $136,029 |
| Non Families | $82,949 | $96,184 |
Average Income
Median Household Income
Poverty Rate