Access comprehensive data on US Electric Power Transmission Lines within Lamb County, Texas, suited for GIS professionals working on infrastructure and utility projects. Our dataset includes key details on five overhead AC transmission lines, all currently operational and essential for understanding regional power distribution. Key properties captured include voltage levels (ranging from 69 to 345 kV), ownership (with entities like Southwestern Public Service Co. and Lamb County Electric Coop, Inc.), and verification sources predominantly from imagery and OpenStreetMap data from 2017 and 2018. This resource provides foundational data pivotal for planning and analysis in the power transmission sector.