78642 is zip code located in Liberty Hill, Texas. The population is 9,175, making 78642 the largest zipcode in Liberty Hill and the 6th largest in Williamson County.
There are 6 public schools in 78642 with an average Homefacts rating of A. The total crime rate for Liberty Hill is very low , and there are 29 registered sex offenders residing in the zip code 78642. Unemployment in 78642 is moderate.