Oacoma, SD is a city located in Lyman County, South Dakota and has a land area of 62.47 square miles (161.80 km2). The water area for the city is 9.53 square miles or 24.68 km2. There is one unique zip code in Oacoma, South Dakota and it is 57365. The area code(s) for Oacoma is 605.
|