San Mateo (CA state) ZIP code
ZIP code of San Mateo (CA) is 94401. Below you can find map of San Mateo, or look up other ZIP codes in California or other US states. If San Mateo's ZIP code is duplicated, and other places have same ZIP code number, you can use our ZIP code searcher by number 94401.
San Mateo have more then one ZIP code. List of all San Mateo's ZIP codes: 94401, 94402, 94403, 94404, 94497.