78681 Frequently Asked Questions

A: ZIP Code 78681 is Located in Round Rock Texas. Portions of 78681 are also in Brushy Creek, Austin, Cedar Park.

A: ZIP Code 78681 is Located Entirely in Williamson County Texas.

A: The Current Sales Tax in ZIP Code 78681 is 8.2%

A: The Area Codes for 78681 are 512 and 737

A: 78681 is within by the Texas 31st Congressional District, the Texas 10th Congressional District and the Texas 17th Congressional District.

A: 78681 is within Texas State House of Representatives District 52 and Texas State House of Representatives District 136.

A: 78681 is within Texas State Senate District 5 and Texas State Senate District 24.

A: The 2022 population of ZIP Code 78681 is 57760. The population growth rate in 78681 is 0.38%.

A: The majority race/ethnicity of people residing in 78681 is White (64.99%). The majority race/ethnicity of students attending public schools in 78681 is White(45.87%).

A: The median household income in 78681 is $112,020 (2021) and the average adjusted income is $109,860 (2020).