East River Electric Power Cooperative

East River Electric Power Cooperative is a power-supply cooperative that delivers wholesale power through a 2,600-mile transmission system to 21 member electric distribution systems.
These distribution systems in turn provide retail electricity to more than 85,000 homes and businesses in a 36,000-square-mile service area, covering 41 counties in eastern South Dakota and nine counties in western Minnesota.


PO Box 227
211 S. Harth Ave.
Madison, SD 57042
(605) 256-4536

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