GIS professionals working with electric power infrastructure in Wharton County, Texas, can access our dataset on US electric power transmission lines, featuring detailed information about local overhead AC lines. The available data details the voltage classes, status, and identified owners, where applicable, for each of the five features in our collection. For instance, the dataset includes transmission lines owned by AEP Texas Central Company and CenterPoint Energy, operating at a sustained voltage of 345 kV. The features were primarily validated using aerial imagery, reflecting their condition and specifications as of the latest updates between 2017 and 2020. This dataset serves as a valuable resource for analyzing the region's power transmission capabilities and planning related projects.