Buffalo is located in Harding County, South Dakota. Buffalo has a 2025 population of 209 . Buffalo is currently declining at a rate of -0.48% annually and its population has decreased by -5% since the most recent census, which recorded a population of 220 in 2020.
The average household income in Buffalo is $152,813 with a poverty rate of 2.83%. The median age in Buffalo is 47.4 years: 47.6 years for males, and 35.9 years for females. For every 100 females there are 76.7 males.
Data after 2023 is projected based on recent change
The racial composition of Buffalo includes 100% White, and smaller percentages for and multiracial populations.
White (100%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 212 | 100% |
Married
Widowed
Divorced
Separated
Never Married
Buffalo's average per capita income is $67,083. Household income levels show a median of $185,921. The poverty rate stands at 2.83%.
Name | Median | Mean |
|---|---|---|
| Families | $186,447 | $161,922 |
| Married Families | $186,316 | - |
| Households | $185,921 | $152,813 |
| Non Families | $63,750 | $66,263 |
Average Income
Median Household Income
Poverty Rate