Canyon Lake is a census-designated place (CDP) in Comal County, Texas, United States.

Communities located on the fringes of the CDP are Fischer, Spring Branch, and Smithson Valley.

Residential and commercial development of the area began after the completion of Canyon Lake in 1964.

As of the 2020 United States census, there were 31,124 people, 10,062 households, and 7,596 families residing in the CDP.

[19] Zoned schools: On October 7, 2007, the Guadalupe-Blanco River Authority opened the 64-acre (260,000 m2) Canyon Lake Gorge, under a lease from the Army Corps of Engineers, with limited public tours.

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