78656 is zip code located in San Marcos, Texas. The population is 2,445, making 78656 the 2nd largest zipcode in San Marcos and the 7th largest in Hays County.
There are 0 public schools in 78656 with an average Homefacts rating of NA. The total crime rate for San Marcos is high , and there are 0 registered sex offenders residing in the zip code 78656. Unemployment in 78656 is moderate.