Delaware County's 2026 population is estimated at 41,763, reflecting a -0.01% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Delaware County is the 25th largest county in Oklahoma. The 2010 population was 41,564 and has grown 0.48% since 2010.
Data after 2023 is projected based on recent change
Overall: 46.9 years
Female: 48 years
Male: 46.1 years
There are 33,109 adults, (10,601 of whom are seniors) in Delaware County.
Female: 20,879 (50.6%)
Male: 20,400 (49.4%)
The racial composition of Delaware County includes 63.3% White, 20.34% 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 | 26,130 | 63.3% |
| Native American | 8,397 | 20.34% |
| Two or more races | 5,444 | 13.19% |
| Asian | 635 | 1.54% |
| Other race | 460 | 1.11% |
| Black or African American | 153 | 0.37% |
| Native Hawaiian or Pacific Islander | 60 | 0.15% |
Delaware County 's average per capita income is $35,987. Household income levels show a median of $56,676. The poverty rate stands at 18.96%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $81,073 | $106,086 |
| Families | $71,298 | $92,989 |
| Households | $56,676 | $77,839 |
| Non Families | $31,095 | $44,551 |
Average Income
Median Household Income
Poverty Rate
