ZIP Codes in Santa Rosa, CA
Santa Rosa uses 6 ZIP codes, all in Sonoma County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 6 Santa Rosa ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 95401 | standard | Sonoma | 36,861 |
| 95403 | standard | Sonoma | 45,806 |
| 95404 | standard | Sonoma | 37,011 |
| 95405 | standard | Sonoma | 22,744 |
| 95407 | standard | Sonoma | 42,036 |
| 95409 | standard | Sonoma | 25,616 |
Finding a ZIP+4 in Santa Rosa
Knowing which of these 6 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 Santa Rosa street almost always have different ZIP+4 codes even though they share all five leading digits.
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