Adair County's 2026 population is estimated at 20,181, reflecting a 0.9% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Adair County is the 40th largest county in Oklahoma. The 2010 population was 22,760 and has grown -11.33% since 2010.
Data after 2023 is projected based on recent change
Overall: 37.9 years
Female: 38.6 years
Male: 36.7 years
There are 14,458 adults, (3,090 of whom are seniors) in Adair County.
Female: 9,726 (49.7%)
Male: 9,849 (50.3%)
The racial composition of Adair County includes 39.72% Native American, 39.58% White, 3.81% other race, and smaller percentages for Asian, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| Native American | 7,775 | 39.72% |
| White | 7,748 | 39.58% |
| Two or more races | 2,898 | 14.8% |
| Other race | 746 | 3.81% |
| Asian | 250 | 1.28% |
| Black or African American | 148 | 0.76% |
| Native Hawaiian or Pacific Islander | 10 | 0.05% |
Adair County 's average per capita income is $34,636. Household income levels show a median of $48,041. The poverty rate stands at 21.52%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $71,224 | - |
| Families | $58,357 | $75,661 |
| Households | $48,041 | $62,038 |
| Non Families | $24,723 | $31,814 |
Average Income
Median Household Income
Poverty Rate
