Universal City is a city located primarily in Bexar county, though slivers of its territory stretch into Guadalupecounty, Texas, United States. It borders San Antonio to the northeast, and is adjacent to Randolph Air Force Base. The population was 18,530 at the 2010 census. It is part of the San Antonio Metropolitan Statistical Area. Universal City was established in 1960. Through Universal City is Pat Booker Road, the commercial thoroughfare of the city. According to the United States Census Bureau, the city has a total area of 5.7 square miles (15 km2), all of it land.