78663 Frequently Asked Questions

A: ZIP Code 78663 is Located in Round Mountain Texas.

A: ZIP Code 78663 is Located Primarily in Blanco County Texas with Portions in Travis County and Burnet County.

A: The Current Sales Tax in ZIP Code 78663 is 8.2%

A: The Area Codes for 78663 are 512, 737 and 830

A: 78663 is within by the Texas 21st Congressional District, the Texas 10th Congressional District and the Texas 31st Congressional District.

A: ZIP Code 78663 is in Texas State House of Representatives District 19.

A: 78663 is within Texas State Senate District 24 and Texas State Senate District 25.

A: The 2022 population of ZIP Code 78663 is 599. The population growth rate in 78663 is -23.77%.

A: The majority race/ethnicity of people residing in 78663 is White (97.91%).

A: The median household income in 78663 is $97,031 (2021) and the average adjusted income is $135,570 (2020).