78721 Frequently Asked Questions

A: ZIP Code 78721 is Located in Austin Texas.

A: ZIP Code 78721 is Located Entirely in Travis County Texas.

A: The Current Sales Tax in ZIP Code 78721 is 8.2%

A: The Area Codes for 78721 are 512 and 737

A: ZIP Code 78721 is in the Texas 35th Congressional District.

A: 78721 is within Texas State House of Representatives District 46 and Texas State House of Representatives District 51.

A: ZIP Code 78721 is in Texas State Senate District 14.

A: The 2022 population of ZIP Code 78721 is 10445. The population growth rate in 78721 is -13.81%. The population density of 78721 is 2,631.

A: The majority race/ethnicity of people residing in 78721 is White (44.36%). The majority race/ethnicity of students attending public schools in 78721 is Hispanic(71.99%).

A: The median household income in 78721 is $61,462 (2021) and the average adjusted income is $355,930 (2021).
2025 zipdatamaps.com