Universal City is a city in Bexar County, Texas, United States. It borders San Antonio to the northeast and is adjacent to Randolph Air Force Base. The population was 19,720 at the 2020 census. It is part of the San Antonio Metropolitan Statistical Area.
The mean center of Universal City is located at 29°33′10.381″N 98°18′27.274″W (29.552883698, –98.307576166). This is about 15 miles (24 km) northeast of downtown San Antonio.
According to the United States Census Bureau, the city has a total area of 5.7 square miles (15 km2), all of it land.