ZIP Codes in Fremont, CA
Fremont uses 4 ZIP codes, all in Alameda County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 4 Fremont ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 94536 | standard | Alameda | 70,619 |
| 94538 | standard | Alameda | 67,781 |
| 94539 | standard | Alameda | 52,396 |
| 94555 | standard | Alameda | 37,501 |
Finding a ZIP+4 in Fremont
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 Fremont street almost always have different ZIP+4 codes even though they share all five leading digits.
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