Access comprehensive data on electric power transmission lines across Bexar County, Texas in our curated dataset for GIS professionals. Our dataset, US Electric Power Transmission Lines, includes detailed information on 8 overhead AC lines currently in service. The data encompass crucial attributes like owner names such as AEP Texas Central Company and Pedernales Electric Coop, Inc, as well as connectivity details between substations like Elm Creek to San Miguel and Calaveras 345 Switchyard to Cagnon Road. Designed with precision from sources like imagery and OpenStreetMap, collected in 2017 and later validated, these datasets are primed for in-depth analysis and application in diverse GIS projects focused on utility management and planning.