Oldham

County:: Kingsbury County
County Seat:: No
Area (mi²):: 0.246
State:: South Dakota

Oldham is a city located in Kingsbury County, South Dakota. Oldham has a 2025 population of 117. Oldham is currently declining at a rate of -0.85% annually and its population has decreased by -3.31% since the most recent census, which recorded a population of 121 in 2020.

The average household income in Oldham is $60,200 with a poverty rate of 19.39%.The median age in Oldham is 59.3 years: 62.1 years for males, and 58.8 years for females.

Demographics

The racial composition of Oldham includes 93.88% White, 3.06% Native American, and smaller percentages for and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	92	93.88%
Native American	3	3.06%
Two or more races	3	3.06%

Oldham Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Oldham's average per capita income is $50,000. Household income levels show a median of $29,643. The poverty rate stands at 19.39%.

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	$93,750	-
Families	$83,750	$76,253
Households	$29,643	$60,200
Non Families	$26,250	$52,880

$50,000

Average Income

$29,643

Median Household Income

19.39%

Poverty Rate