78642 Frequently Asked Questions

A: ZIP Code 78642 is Located in Liberty Hill Texas. Portions of 78642 are also in Santa Rita Ranch, Georgetown.

A: ZIP Code 78642 is Located Primarily in Williamson County Texas with Portions in Burnet County.

A: The Current Sales Tax in ZIP Code 78642 is 8.2%

A: The Area Codes for 78642 are 254, 512 and 737

A: ZIP Code 78642 is in the Texas 31st Congressional District.

A: 78642 is within Texas State House of Representatives District 19, Texas State House of Representatives District 20 and Texas State House of Representatives District 52.

A: 78642 is within Texas State Senate District 5 and Texas State Senate District 24.

A: The 2022 population of ZIP Code 78642 is 20699. The population growth rate in 78642 is 65.48%.

A: The majority race/ethnicity of people residing in 78642 is White (72.91%). The majority race/ethnicity of students attending public schools in 78642 is White(67.64%).

A: The median household income in 78642 is $109,939 (2021) and the average adjusted income is $108,600 (2020).