Corpus Christi ( KOR-pəs KRIS-tee; Latin for 'Body of Christ') is a coastal city in the South Texas region of the U.S. state of Texas and the county seat and largest city of Nueces County with portions extending into Aransas, Kleberg, and San Patricio counties. It is 130 miles (210 km) southeast of San Antonio and 208 miles (335 km) southwest of Houston. Its political boundaries encompass Nueces Bay and Corpus Christi Bay. Its zoned boundaries include small land parcels or water inlets of three neighboring counties. The city's population was 316,239 in 2022, making it the eighth-most populous city in Texas. The Corpus Christi metropolitan area had an estimated population of 442,600. It is also the hub of the six-county Corpus Christi–Kingsville combined statistical area, with a 2013 estimated population of 516,793. The Port of Corpus Christi is the fifth-largest in the United States. The region is served by the Corpus Christi International Airport. The city's name means body of Christ in Ecclesiastical Latin, in reference to the Christian sacrament of Holy Communion. The name was given to the settlement and surrounding bay by Spanish explorer Alonso Álvarez de Pineda in 1519, as he discovered the lush semitropical bay on the Western Christian feast day of Corpus Christi. Corpus Christi is home to Naval Air Station Corpus Christi, one of two locations training primary student pilots and advanced multiengine pilots of the US Navy, US Marine Corps, and US Coast Guard.