ZIP Code 92304 — Amboy, California
📍 ZIP code 92304 is in Amboy, San Bernardino County, California.
ZIP code 92304 is a PO Box ZIP code assigned by the U.S. Postal Service in Amboy, San Bernardino County, California. It serves post office boxes at a Amboy 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 92304 is handled in the Pacific Time Zone and the local area code is 760. The demographic profile of the surrounding community is on the standard delivery ZIP pages for Amboy listed below.
Why there are no demographics for 92304
The Census Bureau publishes demographics for ZIP Code Tabulation Areas (ZCTAs), which are built from populated census blocks. A PO Box ZIP like 92304 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.
How ZIPs and ZCTAs differ is explained on the methodology page.
Nearby Zip Codes
Cities & Places Served
ZIP code 92304 primarily serves Amboy in San Bernardino County, California.