Buffalo Gap is a town located in Custer County, South Dakota. Buffalo Gap has a 2025 population of 160 . Buffalo Gap is currently growing at a rate of 3.9% annually and its population has increased by 24.03% since the most recent census, which recorded a population of 129 in 2020.
The average household income in Buffalo Gap is $52,849 with a poverty rate of 6.43%. The median age in Buffalo Gap is 64 years: 69.4 years for males, and 61.6 years for females. For every 100 females there are 91.8 males.
Data after 2023 is projected based on recent change
The racial composition of Buffalo Gap includes 87.86% White, 10.71% Native American, and smaller percentages for Two or more races and multiracial populations.
White (87.86%)
Native American (10.71%)
Two or more races (1.43%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 123 | 87.86% |
| Native American | 15 | 10.71% |
| Two or more races | 2 | 1.43% |
Married
Widowed
Divorced
Separated
Never Married
Buffalo Gap's average per capita income is $0. Household income levels show a median of $55,268. The poverty rate stands at 6.43%.
Name | Median | Mean |
|---|---|---|
| Married Families | $82,344 | - |
| Families | $80,938 | $67,703 |
| Households | $55,268 | $52,849 |
| Non Families | - | $43,321 |
Average Income
Median Household Income
Poverty Rate