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, Black or African American, Asian, Native Hawaiian or Pacific Islander, Two or more races and multiracial populations.

Population by Race

White

Other race

Native American

Black or African American

Asian

Native Hawaiian or Pacific Islander

Two or more races

Race	Population	Percentage (of total)
White	484	95.84%
Other race	13	2.57%
Native American	8	1.58%
Black or African American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Two or more races	0	0%

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