The Archdiocese of San Antonio is an archdiocese of the Catholic Church in the United States. It encompasses 27,841 square miles (72,110 km2) in the U.S. state of Texas. Its population was 1,148,253 in 2025. The archdiocese includes the city of San Antonio and the following counties: Val Verde, Edwards, Real, Kerr, Gillespie, Kendall, Comal, Guadalupe, Gonzales, Uvalde, Kinney, Medina, Bexar, Wilson, Karnes, Frio, Atascosa, and Bandera, and the portion of McMullen County north of the Nueces River.