78666 Frequently Asked Questions

A: ZIP Code 78666 is Located in San Marcos Texas. Portions of 78666 are also in Kyle, Redwood, Canyon Lake, Wimberley.

A: ZIP Code 78666 is Located Primarily in Hays County Texas with Portions in Guadalupe County and Comal County.

A: The Current Sales Tax in ZIP Code 78666 is 8.2%

A: The Area Codes for 78666 are 512, 737 and 830

A: 78666 is within by the Texas 21st Congressional District, the Texas 35th Congressional District, the Texas 15th Congressional District and the Texas 27th Congressional District.

A: 78666 is within Texas State House of Representatives District 17, Texas State House of Representatives District 44, Texas State House of Representatives District 45 and Texas State House of Representatives District 73.

A: 78666 is within Texas State Senate District 21 and Texas State Senate District 25.

A: The 2022 population of ZIP Code 78666 is 86530. The population growth rate in 78666 is 8.41%. The population density of 78666 is 469.

A: The majority race/ethnicity of people residing in 78666 is White (58.63%). The majority race/ethnicity of students attending public schools in 78666 is Hispanic(72.11%).

A: The median household income in 78666 is $44,914 (2021) and the average adjusted income is $467,950 (2021).