78644 is zip code located in Lockhart, Texas. The population is 16,820, making 78644 the largest zipcode in Lockhart and the largest in Caldwell County.
There are 11 public schools in 78644 with an average Homefacts rating of C+. The total crime rate for Lockhart is low , and there are 54 registered sex offenders residing in the zip code 78644. Unemployment in 78644 is moderate.