78656 Frequently Asked Questions

A: ZIP Code 78656 is Located in Maxwell Texas. Portions of 78656 are also in San Marcos, Martindale.

A: ZIP Code 78656 is Located Entirely in Caldwell County Texas.

A: The Current Sales Tax in ZIP Code 78656 is 8.2%

A: The Area Codes for 78656 are 512 and 737

A: ZIP Code 78656 is in the Texas 27th Congressional District.

A: ZIP Code 78656 is in Texas State House of Representatives District 17.

A: ZIP Code 78656 is in Texas State Senate District 21.

A: The 2022 population of ZIP Code 78656 is 2631. The population growth rate in 78656 is 4.42%. The population density of 78656 is 79.

A: The majority race/ethnicity of people residing in 78656 is White (50.27%).

A: The median household income in 78656 is $49,564 (2021) and the average adjusted income is $338,130 (2021).