Postal reference / 90000

90000 ZIP code lookup

90000 is not in our postal reference dataset. A missing record does not by itself prove that the code is invalid, so check it below and verify with USPS if you were given it as part of an address.

No match in this reference dataset

The 900 prefix is in use: the dataset records 95 ZIP codes starting with 900, all in California. 90000 itself may be a newer assignment, a PO Box or unique ZIP not carried by GeoNames, or a number that has never been assigned. Only USPS can confirm which.

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ZIP codes that start with 900

Recorded codes in California with the same three-digit prefix.