Oacoma Flag

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.

392
Total Population
150
Density (mi²)
1 0.26%
Growth

Oacoma Population

Oacoma Population

Data after 2023 is projected based on recent change

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)
White48495.84%
Other race132.57%
Native American81.58%

Oacoma Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

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

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)