Santee Electric Cooperative, a member-owned nonprofit utility, was formed in the late 1930s and was chartered on December 1939. Santee Electric's primary purpose is to provide its rural members with electric service at the lowest possible cost. The utility's service area includes Williamsburg and Georgetown counties, west of the Intercoastal Waterway, eastern Clarendon and southern Florence counties. It extends from Highway 301 to the Intercoastal Waterway, and from the Pee Dee River to the Santee River. There are currently over 40,000 members scattered over 5,000 miles of line in the four-county area. The cooperative headquarters is located in Kingstree, but branch offices are located in Manning, Lake City, Hemingway, and Georgetown, S.C.