Buffalo is a town located in Harper County, Oklahoma. Buffalo has a 2025 population of 1,015 . It is also the county seat of Harper County . Buffalo is currently declining at a rate of -0.39% annually and its population has decreased by -1.84% since the most recent census, which recorded a population of 1,034 in 2020.
The average household income in Buffalo is $75,681 with a poverty rate of 9.8%. The median age in Buffalo is 41.7 years: 41.7 years for males, and 42 years for females. For every 100 females there are 92.6 males.
Data after 2023 is projected based on recent change
The racial composition of Buffalo includes 78.54% White, 14.95% other race, and smaller percentages for Black or African American, Native American and multiracial populations.
White (78.54%)
Other race (14.95%)
Two or more races (6.27%)
Black or African American (0.16%)
Native American (0.08%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 977 | 78.54% |
| Other race | 186 | 14.95% |
| Two or more races | 78 | 6.27% |
| Black or African American | 2 | 0.16% |
| Native American | 1 | 0.08% |
Married
Widowed
Divorced
Separated
Never Married
Buffalo's average per capita income is $37,321. Household income levels show a median of $69,875. The poverty rate stands at 9.8%.
Name | Median | Mean |
|---|---|---|
| Married Families | $83,063 | - |
| Families | $79,453 | $88,215 |
| Households | $69,875 | $75,681 |
| Non Families | - | $38,634 |
Average Income
Median Household Income
Poverty Rate