Edgemont, SD is a city located in Fall River County, South Dakota and has a land area of 904.55 square miles (2,342.78 km2). The water area for the city is 0.68 square miles or 1.76 km2. There is one unique zip code in Edgemont, South Dakota and it is 57735. The area code(s) for Edgemont is 605.
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