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Oacoma

Oacoma

Oacoma is a town in Lyman County, South Dakota, United States. Oacoma is located on the west bank of the Missouri River, across from Chamberlain. According to the United States Census Bureau, the town has a total area of 4.4 square miles (11km2). 2.0 square miles (5.2km2) of it is land and 2.4 square miles (6.2km2) of it (54.38%) is water.