78665 is zip code located in Round Rock, Texas. The population is 33,133, making 78665 the 3rd largest zipcode in Round Rock.
There are 4 public schools in 78665 with an average Homefacts rating of A. The total crime rate for Round Rock is very low , and there are 37 registered sex offenders residing in the zip code 78665. Unemployment in 78665 is low.