91730 is zip code located in Rancho Cucamonga, California. The population is 65,610, making 91730 the largest zipcode in Rancho Cucamonga and the 7th largest in San Bernardino County.
There are 11 public schools in 91730 with an average Homefacts rating of B. The total crime rate for Rancho Cucamonga is low , and there are 1 registered sex offenders residing in the zip code 91730. Unemployment in 91730 is moderate.