Grant County's 2026 population is estimated at 4,193, reflecting a 0.84% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Grant County is the 72nd largest county in Oklahoma. The 2010 population was 4,536 and has grown -7.56% since 2010.
Data after 2023 is projected based on recent change
Overall: 43.2 years
Female: 43.8 years
Male: 42 years
There are 3,152 adults, (939 of whom are seniors) in Grant County.
Female: 1,984 (48%)
Male: 2,147 (52%)
The racial composition of Grant County includes 86.4% White, and smaller percentages for Native American, Black or African American, other race, Asian and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 3,569 | 86.4% |
| Two or more races | 317 | 7.67% |
| Native American | 95 | 2.3% |
| Black or African American | 84 | 2.03% |
| Other race | 60 | 1.45% |
| Asian | 6 | 0.15% |
Grant County 's average per capita income is $43,487. Household income levels show a median of $60,758. The poverty rate stands at 17.5%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $86,563 | - |
| Families | $74,375 | $88,245 |
| Households | $60,758 | $78,617 |
| Non Families | $35,076 | $58,082 |
Average Income
Median Household Income
Poverty Rate
