Columbia

County:: Brown County
County Seat:: No
Area (mi²):: 1.517
State:: South Dakota

Columbia is a city located in Brown County, South Dakota. Columbia has a 2025 population of 155. Columbia is currently declining at a rate of 0% annually and its population has decreased by -1.27% since the most recent census, which recorded a population of 157 in 2020.

The average household income in Columbia is $74,874 with a poverty rate of 1.18%.The median age in Columbia is 32 years: 18.6 years for males, and 39.3 years for females.

Demographics

The racial composition of Columbia includes 99.41% White, and smaller percentages for Native American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	169	99.41%
Native American	1	0.59%

Columbia Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Columbia's average per capita income is $38,333. Household income levels show a median of $59,038. The poverty rate stands at 1.18%.

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	$95,781	-
Families	$59,688	$87,786
Households	$59,038	$74,874
Non Families	$38,125	$51,132

$38,333

Average Income

$59,038

Median Household Income

1.18%

Poverty Rate