Oacoma Flag

Oacoma

County:
Lyman County
County Seat:
No
Area (mi²):
2.625
State:
South Dakota

Oacoma is a town located in Lyman County, South Dakota. Oacoma has a 2026 population of 395. Oacoma is currently growing at a rate of 0.51% annually and its population has increased by 2.33% since the most recent census, which recorded a population of 386 in 2020.

The median household income in Oacoma is $73,333 with a poverty rate of 5.47%. The median age in Oacoma is 40.2 years: 44.4 years for males, and 31.8 years for females. For every 100 females there are 148.0 males.

395
Total Population
150
Density (mi²)
2 0.51%
Growth

Oacoma Population

Oacoma Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202639520.51%
202539310.26%
202439200%
202339230.77%
2022389-3-0.77%
202139261.55%
202038600%
201947100%
2018471-8-1.67%
2017479-3-0.62%
201648240.84%
201547851.06%
201447351.07%
201346861.3%
2012462-4-0.86%
2011466153.33%
201045961.32%

Median Age

Overall: 40.2 years
Female: 31.8 years
Male: 44.4 years

Oacoma Adults

There are 409 adults, (146 of whom are seniors) in Oacoma.

Sex Ratio

Female: 221 (40.3%)
Male: 327 (59.7%)

Demographics

The racial composition of Oacoma includes 95.99% White, and smaller percentages for Native American, other race and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White52695.99%
Native American142.55%
Other race81.46%
Race
Population ↓
Percentage (of total)
Other race81.46%
Native American20.36%
White10.18%
Race
Population ↓
Percentage (of total)
White52595.8%
Native American122.19%

Oacoma Marital Status

Economics and Income Statistics

Oacoma 's average per capita income is $44,375. Household income levels show a median of $73,333. The poverty rate stands at 5.47%.

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$95,833-
Non Families$83,125$69,324
Households$73,333$87,555
Families$64,750$99,412

$44,375

Average Income

$73,333

Median Household Income

5.47%

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)