McLean County's 2026 population is estimated at 9,863, reflecting a 0.09% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). McLean County is the 15th largest county in North Dakota. The 2010 population was 8,998 and has grown 9.61% since 2010.
Data after 2023 is projected based on recent change
Overall: 47.7 years
Female: 47.9 years
Male: 47.5 years
There are 7,754 adults, (2,581 of whom are seniors) in McLean County.
Female: 4,739 (48.2%)
Male: 5,084 (51.8%)
The racial composition of McLean County includes 88.55% White, 5.86% Native American, and smaller percentages for Asian, other race, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 8,698 | 88.55% |
| Native American | 576 | 5.86% |
| Two or more races | 365 | 3.72% |
| Asian | 100 | 1.02% |
| Other race | 65 | 0.66% |
| Black or African American | 10 | 0.1% |
| Native Hawaiian or Pacific Islander | 9 | 0.09% |
McLean County 's average per capita income is $55,910. Household income levels show a median of $83,583. The poverty rate stands at 8.88%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $113,661 | - |
| Families | $109,760 | $123,776 |
| Households | $83,583 | $102,353 |
| Non Families | $49,545 | $59,731 |
Average Income
Median Household Income
Poverty Rate