Access comprehensive datasets of electric power transmission lines specific to Los Angeles County, California, a resource geared towards professionals in the field of Geographic Information Systems (GIS). This dataset is particularly valuable for those engaged in understanding and managing the infrastructure that enables electricity distribution across the region. Featuring details on 19 different transmission lines, each recorded data point includes critical information such as voltage levels, ownership data, type of line (e.g., AC; Overhead), and operational status. Amongst these entries, notable transmission lines such as Celilo-Sylmar East and Intermountain-Adelanto highlight the diversity and scale of electricity transmission within this dataset. With properties including voltage class and source validation method, this dataset is invaluable for anyone involved in electrical infrastructure management, planning, or research in Los Angeles County.