Canyon Lake is a census-designated place (CDP) in Comal County, Texas. The population was 22,039 at the 2010 census. It is part of the San Antonio Metropolitan Statistical Area.
The Canyon Lake CDP includes a number of small, unincorporated communities surrounding Canyon Lake, including Sattler, Startzville, Canyon City, Cranes Mill, and Hancock. Communities located on the fringes of the CDP are Fischer, Spring Branch, and Smithson Valley.
The median income for a household in the CDP was $42,019, and the median income for a family was $47,500. Males had a median income of $34,575 versus $25,268 for females. The per capita income for the CDP was $21,516. About 5.6% of families and 8.7% of the population were below the poverty line, including 14.4% of those under age 18 and 4.8% of those age 65 or over.