ZIP Codes in Tracy, CA
Tracy uses 4 ZIP codes, all in San Joaquin, Alameda Counties. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 4 Tracy ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 95304 | standard | San Joaquin | 15,841 |
| 95376 | standard | San Joaquin | 54,488 |
| 95377 | standard | San Joaquin | 37,739 |
| 95391 | standard | Alameda | 25,574 |
Finding a ZIP+4 in Tracy
Knowing which of these 4 ZIP codes covers an address only gets you partway. The four-digit extension identifies the specific delivery point — typically one side of one block. Two houses facing each other on the same Tracy street almost always have different ZIP+4 codes even though they share all five leading digits.
Appending ZIP+4 to a mailing list?
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