Effingham County, Georgia, serves as a vital node in the US Electric Power Transmission Lines network. This dataset comprises approximately five features of overhead AC transmission lines currently in service, specified within the domain of electric bulk power transmission and control. Information regarding ownership, such as by Georgia Transmission Corp and Georgia Power Co, voltage levels like 500 and 230 volts, and connection sites including Blandford to Thalmann, and Jasper to Yemassee are detailed. These datasets, sourced predominantly from imagery and augmented by OpenStreetMap, provide an invaluable resource for GIS professionals engaged in the planning and management of electrical infrastructure projects.