Selby

County:: Walworth County
County Seat:: No
Area (mi²):: 0.712
State:: South Dakota

Selby is a city located in Walworth County, South Dakota. Selby has a 2025 population of 604. Selby is currently declining at a rate of -0.17% annually and its population has decreased by -1.15% since the most recent census, which recorded a population of 611 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.

Demographics

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.

Population by Race

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%

Selby Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

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%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$76,875	-
Families	$75,000	$94,514
Households	$40,882	$73,236
Non Families	$28,182	$32,665

$36,161

Average Income

$40,882

Median Household Income

6.75%

Poverty Rate