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 392. Oacoma is currently declining at a rate of 0% annually and its population has increased by 1.55% since the most recent census, which recorded a population of 386 in 2020.

392
Total Population
149
Density (mi²)

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)