Leon Valley is a city in Bexar County, Texas, United States.

Leon Valley is an independent municipality surrounded by the city of San Antonio.

Leon Valley was developed in the 1940s as a farming community on Bandera Road between Helotes and San Antonio.

Leon Valley incorporated in 1954 under the leadership of its founding mayor, Raymond Rimkus.

According to the United States Census Bureau, the city has a total area of 3.4 square miles (8.8 km2), all land.

As of the 2020 United States census, 11,542 people, 4,562 households, and 3,036 families were residing in the city.

The 3,672 housing units hat an average density of 1,076.3 per square mile (415.6/km2).

The median home price for Leon Valley has appreciated every year since 2000.