Rancho Cucamonga, CA

ZIP code 91729 is associated with Rancho Cucamonga, California, but it is a PO-box ZIP code rather than a conventional geographic delivery area. Consequently, major landmarks cannot be reliably identified as being within its boundaries. Nearby Rancho Cucamonga landmarks, such as Victoria Gardens and the Route 66-themed Cucamonga Service Station, have different ZIP codes and should not be attributed to 91729.