ZIP Code 90748 — Wilmington, California
📍 ZIP code 90748 is in Wilmington, Los Angeles County, California.
ZIP code 90748 is a PO Box ZIP code assigned by the U.S. Postal Service in Wilmington, Los Angeles County, California. It serves post office boxes at a Wilmington 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 90748 is handled in the Pacific Time Zone and the local area code is 310. The demographic profile of the surrounding community is on the standard delivery ZIP pages for Wilmington listed below.
ZIP Code 90748 Map
Coordinates: 33.7866°N, 118.2987°W
Why there are no demographics for 90748
The Census Bureau publishes demographics for ZIP Code Tabulation Areas (ZCTAs), which are built from populated census blocks. A PO Box ZIP like 90748 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: Los Angeles County and the rest of California have hundreds of PO Box and unique ZIPs of this kind.
For the community around Wilmington, 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 90748 primarily serves Wilmington in Los Angeles County, California.