Mason is a city in, and the county seat of, Mason County, Texas, United States. The city is an agricultural community on Comanche Creek southwest of Mason Mountain, on the Edwards Plateau and part of the Llano Uplift. Its population was 2,114 at the 2010 census.

In the U.S. state of Texas, U.S. Highway 87 is a north–south U.S. Highway that begins near the Gulf Coast in Port Lavaca, Texas and heads north through San Antonio, Lubbock, Amarillo, and Dalhart to the New Mexico state line near Texline.