Map of Oacoma town

Oacoma is a town in Lyman County, South Dakota, United States. The population was 386 at the 2020 census. Oacoma is located on the west bank of the Missouri River, across from Chamberlain.

Oacoma town overview:
Name:	Oacoma town
LSAD Code:	43
LSAD Description:	town (suffix)
State:	South Dakota
County:	Lyman County
Founded:	1890
Elevation:	1,385 ft (422 m)
Total Area:	4.19 sq mi (10.86 km²)
Land Area:	2.60 sq mi (6.75 km²)
Water Area:	1.59 sq mi (4.11 km²)
Total Population:	386
Population Density:	148.23/sq mi (57.22/km²)
ZIP code:	57365
Area code:	605
FIPS code:	4646180
GNISfeature ID:	1265308
Website:	oacomasd.com

Online Interactive Map

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Oacoma online map. Source: Basemap layers from Google Map, Open Street Map (OSM), Arcgisonline, Wmflabs. Boundary Data from Database of Global Administrative Areas.

Oacoma location map. Where is Oacoma town?

Oacoma location on the U.S. Map. Where is Oacoma town. — Oacoma location on the U.S. Map.

Oacoma location on the South Dakota map. Where is Oacoma town. — Location of Oacoma in South Dakota.

History

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 Road Map

Oacoma city Satellite Map

Geography

Oacoma is located at 43°48′15″N 99°22′49″W / 43.804117°N 99.380157°W / 43.804117; -99.380157. According to the United States Census Bureau, the town has a total area of 4.18 square miles (10.83 km), of which 2.59 square miles (6.71 km) is land and 1.59 square miles (4.12 km) is water.

American Crow Creek, a tributary to the Missouri River, enters the river in Oacoma.

The town is located approximately halfway between Sioux Falls and Rapid City.