Oacoma

County:: Lyman County
County Seat:: No
Area (mi²):: 2.612
State:: South Dakota

Oacoma is a town located in Lyman County, South Dakota. Oacoma has a 2025 population of 392. Oacoma is currently growing at a rate of 0.26% annually and its population has increased by 1.55% since the most recent census, which recorded a population of 386 in 2020.

The average household income in Oacoma is $81,433 with a poverty rate of 4.75%.The median age in Oacoma is 45.8 years: 51.8 years for males, and 36.9 years for females.

Demographics

The racial composition of Oacoma includes 95.84% White, and smaller percentages for other race, Native American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	484	95.84%
Other race	13	2.57%
Native American	8	1.58%

Oacoma Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Oacoma's average per capita income is $39,688. Household income levels show a median of $70,250. The poverty rate stands at 4.75%.

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	$84,688	-
Families	$71,667	$96,904
Households	$70,250	$81,433
Non Families	$63,125	$61,128

$39,688

Average Income

$70,250

Median Household Income

4.75%

Poverty Rate