Live Oak is a city in Bexar County, Texas, United States.

It is part of the San Antonio Metropolitan Statistical Area.

As of the 2020 United States census, there were 15,781 people, 6,135 households, and 3,940 families residing in the city.

There were 3,518 housing units at an average density of 751.8 per square mile (290.3/km2).

The climate in this area is characterized by hot, humid summers and generally mild to cool winters.