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, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Native American

Black or African American

Other race

Asian

Native Hawaiian or Pacific Islander

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%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%

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