Oacoma, South Dakota
| Oacoma, South Dakota | |
|---|---|
| Town | |
| Motto: "One Day Just Isn't Enough" | |
 Location in Lyman County and the state of South Dakota |
|
| Coordinates: 43°48′15″N 99°22′49″W / 43.80417°N 99.38028°WCoordinates: 43°48′15″N 99°22′49″W / 43.80417°N 99.38028°W | |
| Country | United States |
| State | South Dakota |
| County | Lyman |
| Founded | 1890 |
| Area | |
| • Total | 4.18 sq mi (10.83 km2) |
| • Land | 2.59 sq mi (6.71 km2) |
| • Water | 1.59 sq mi (4.12 km2) |
| Elevation | 1,385 ft (422 m) |
| Population (2010) | |
| • Total | 451 |
| • Estimate (2012) | 460 |
| • Density | 174.1/sq mi (67.2/km2) |
| Time zone | Central (CST) (UTC-6) |
| • Summer (DST) | CDT (UTC-5) |
| ZIP code | 57365 |
| Area code(s) | 605 |
| FIPS code | 46-46180 |
| GNIS feature ID | 1265308 |
Oacoma is a town in Lyman County, South Dakota, United States. The population was 451 at the 2010 census. Oacoma is located on the west bank of the Missouri River, across from Chamberlain.
On September 17, 1804, Lewis and Clark camped on the west bank of the Missouri River near American Island where Oacoma is now located. During the remainder of the 19th century the area was a stopping off place for explorers, fur traders and steamboat men. The township of Oacoma was laid out in 1891 as the county seat for the newly formed Lyman County; the seat was transferred to Kennebec in 1922. The Chicago, Milwaukee, St. Paul and Pacific Railroad arrived to Oacoma in 1905 and Oacoma was known as a "banking post-village". In the 21st century, it is a rest stop for travelers on Interstate 90.
Oacoma is located at 43°48′15″N 99°22′49″W / 43.804117°N 99.380157°W. According to the United States Census Bureau, the town has a total area of 4.18 square miles (10.83 km2), of which 2.59 square miles (6.71 km2) is land and 1.59 square miles (4.12 km2) is water.
As of the census of 2010, there were 451 people, 205 households, and 135 families residing in the town. The population density was 174.1 inhabitants per square mile (67.2/km2). There were 236 housing units at an average density of 91.1 per square mile (35.2/km2). The racial makeup of the town was 88.9% White, 0.2% African American, 6.4% Native American, 0.4% Asian, 0.7% from other races, and 3.3% from two or more races. Hispanic or Latino of any race were 1.8% of the population.
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