78638 Frequently Asked Questions

A: ZIP Code 78638 is Located in Kingsbury Texas. Portions of 78638 are also in Staples, Fentress.

A: ZIP Code 78638 is Located Primarily in Guadalupe County Texas with Portions in Caldwell County.

A: The Current Sales Tax in ZIP Code 78638 is 8.2%

A: The Area Codes for 78638 are 512, 737 and 830

A: ZIP Code 78638 is in the Texas 15th Congressional District.

A: ZIP Code 78638 is in Texas State House of Representatives District 44.

A: ZIP Code 78638 is in Texas State Senate District 21.

A: The 2022 population of ZIP Code 78638 is 1982. The population growth rate in 78638 is -5.94%. The population density of 78638 is 17.

A: The majority race/ethnicity of people residing in 78638 is White (64.69%).

A: The median household income in 78638 is $49,886 (2021) and the average adjusted income is $696,490 (2021).