Seminole County's 2026 population is estimated at 22,883, reflecting a -1.01% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Seminole County is the 37th largest county in Oklahoma. The 2010 population was 25,487 and has grown -10.22% since 2010.
Data after 2023 is projected based on recent change
Overall: 39.2 years
Female: 40.6 years
Male: 37.3 years
There are 17,780 adults, (4,325 of whom are seniors) in Seminole County.
Female: 11,939 (50.8%)
Male: 11,555 (49.2%)
The racial composition of Seminole County includes 64.34% White, 18.92% Native American, 3.58% Black or African American, and smaller percentages for other race, Asian, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 15,117 | 64.34% |
| Native American | 4,445 | 18.92% |
| Two or more races | 2,745 | 11.68% |
| Black or African American | 842 | 3.58% |
| Other race | 230 | 0.98% |
| Asian | 103 | 0.44% |
| Native Hawaiian or Pacific Islander | 12 | 0.05% |
Seminole County 's average per capita income is $39,701. Household income levels show a median of $48,062. The poverty rate stands at 21.74%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $74,956 | $87,613 |
| Families | $58,863 | $73,508 |
| Households | $48,062 | $63,114 |
| Non Families | $27,763 | $39,010 |
Average Income
Median Household Income
Poverty Rate
