San Antonio is located at 29°25'26" North, 98°29'35" West (29.423889, -98.493056).
According to the United States Census Bureau, the city has a total area of 412.07 mi2 (1,067.27 km2). 407.56 mi2 (1,055.57 km2) of it is land and 4.51 mi2 (11.69 km2) of it is covered by water. The total area is 1.10% water.
San Antonio is located in the Central Standard Time (CST) timezone, GMT-06:00. It observes Daylight Saving Time (DST).