ZIP Code 91729 — Rancho Cucamonga, California
📍 ZIP code 91729 is in Rancho Cucamonga, San Bernardino County, California.
ZIP code 91729 is a PO Box ZIP code assigned by the U.S. Postal Service in Rancho Cucamonga, San Bernardino County, California. It serves post office boxes at a Rancho Cucamonga post office rather than street addresses, which is why the Census Bureau reports no resident population, income or housing figures for it. Mail addressed to 91729 is handled in the Pacific Time Zone and the local area code is 909. The demographic profile of the surrounding community is on the standard delivery ZIP pages for Rancho Cucamonga listed below.
ZIP Code 91729 Map
Coordinates: 34.8400°N, 115.9671°W
Why there are no demographics for 91729
The Census Bureau publishes demographics for ZIP Code Tabulation Areas (ZCTAs), which are built from populated census blocks. A PO Box ZIP like 91729 has no delivery territory of its own, so there is no ZCTA and no population, income, housing or education estimate to report. This is normal: San Bernardino County and the rest of California have hundreds of PO Box and unique ZIPs of this kind.
For the community around Rancho Cucamonga, use the delivery ZIPs that do carry Census data:
How ZIPs and ZCTAs differ is explained on the methodology page.
Nearby Zip Codes
Cities & Places Served
ZIP code 91729 primarily serves Rancho Cucamonga in San Bernardino County, California.