ZIP Codes in Los Altos, CA
Los Altos uses 2 ZIP codes, all in Santa Clara County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 2 Los Altos ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 94022 | standard | Santa Clara | 20,027 |
| 94024 | standard | Santa Clara | 23,051 |
Finding a ZIP+4 in Los Altos
Knowing which of these 2 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 Los Altos street almost always have different ZIP+4 codes even though they share all five leading digits.
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