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Tom Green County Texas ☎ There are three major impoundm Last Updated: 08/30/2025 |
| Tom Green County is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, its population was 120,003. Its county seat is San Angelo. It sits at an elevation variation of 1,717 feet to 2,480 feet. The principal river in the county is the Concho, which is formed by the convergence of the North, Middle, and South Concho rivers. | |
| The North Concho River and its tributaries, Bald Eagle, Chalk, Dry, Grape, Little, Mulberry, and Walnut creeks, drain the northwest portion of the county. The Middle Concho and its tributaries, Brushy, Dove, Dry Rocky, East Rocky, West Rocky, and Spring creeks, drain the west central and southwest portions of the county. The South Concho and its tributaries, Burks and Pecan creeks, drain the southern part of the county. And finally the Concho and its tributaries, Catelan, Erica, Hog Marsh, Kickapoo, Lipan, and Snake creeks, drain the southeastern part of the county. There are three major impoundments, O. C. Fisher lake, Twin Buttes Reservoir, and Lake Nasworthy. | |