Selby is a city located in Walworth County, South Dakota. Selby has a 2025 population of 605 . Selby is currently declining at a rate of -0.17% annually and its population has decreased by -0.82% since the most recent census, which recorded a population of 610 in 2020.
The average household income in Selby is $73,236 with a poverty rate of 6.75%. The median age in Selby is 41.7 years: 41.1 years for males, and 48.3 years for females. For every 100 females there are 102.5 males.
Data after 2023 is projected based on recent change
The racial composition of Selby includes 85.36% White, 4.05% Native American, and smaller percentages for Black or African American, other race and multiracial populations.
White (85.36%)
Two or more races (7.63%)
Native American (4.05%)
Black or African American (2.34%)
Other race (0.62%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 548 | 85.36% |
| Two or more races | 49 | 7.63% |
| Native American | 26 | 4.05% |
| Black or African American | 15 | 2.34% |
| Other race | 4 | 0.62% |
Married
Widowed
Divorced
Separated
Never Married
Selby's average per capita income is $36,161. Household income levels show a median of $40,882. The poverty rate stands at 6.75%.
Name | Median | Mean |
|---|---|---|
| Married Families | $76,875 | - |
| Families | $75,000 | $94,514 |
| Households | $40,882 | $73,236 |
| Non Families | $28,182 | $32,665 |
Average Income
Median Household Income
Poverty Rate