Alta Loma, CA ZIP Codes

  1. Cities in a ZIP Code may be referred to by more than one name or spelling.
  2. The US Postal Service considers Alta Loma an alternate city name for 2 Rancho Cucamonga ZIP Codes.
  3. Select a ZIP Code on the map or from the list below, for more detailed information.
Alta Loma, CA - Standard ZIP Codes
91701 91737