92078 is zip code located in San Marcos, California. The population is 43,220, making 92078 the 2nd largest zipcode in San Marcos.
There are 14 public schools in 92078 with an average Homefacts rating of A. The total crime rate for San Marcos is very low , and there are 14 registered sex offenders residing in the zip code 92078. Unemployment in 92078 is moderate.