Access detailed data on the electric power transmission lines in Hockley County, Texas, tailored for GIS professionals involved in utility mapping and infrastructure analysis. This dataset incorporates four overhead alternating current (AC) transmission lines that are currently in service and have been meticulously cataloged through advanced imagery and OpenStreetMap sources as of 2017 and 2020. Each entry in the dataset provides crucial information such as voltage levels—ranging from under 100 kV to 287 kV—ownership details from entities like Lamb County Electric Cooperative and Southwestern Public Service Co., and precise length measurements of the transmission lines. This comprehensive dataset ensures accurate planning and analysis for those engaged in the development and maintenance of regional electric power networks.