San Mateo, CA ZIP Codes

ZIP code, county, time zone and coordinates of San Mateo, California

The ZIP code of San Mateo, CA is 94401. San Mateo has 4 ZIP codes: 94401, 94403, 94404, 94402. It is in San Mateo County.

Mailing address format for San Mateo

John Smith
123 Main St
SAN MATEO CA 94401
USA

USPS prefers capital letters without punctuation. Check the exact ZIP+4 for a street address on the USPS website.

All ZIP codes in San Mateo

ZIP codePopulationArea
94401—3.1 sq miMain
94403—5.6 sq mi
94404—4.3 sq mi
94402—5.1 sq mi

ZIP Code Tabulation Areas (ZCTA), U.S. Census Bureau. A ZCTA can cover parts of more than one town.

Where is San Mateo? Location, county and time zone

State
California
County
San Mateo County
GPS coordinates
37.56031, -122.31060
Elevation
39 ft (12 m)
Time zone
America/Los AngelesPST · UTC-08:00
Population
105,661

Map of San Mateo, CA 94401

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ZIP codes near San Mateo

San Mateo ZIP code: FAQ

What is the ZIP code for San Mateo, CA?

The main ZIP code for San Mateo, CA is 94401. All ZIP codes: 94401, 94403, 94404, 94402.

How many ZIP codes does San Mateo have?

San Mateo has 4 ZIP codes.

What county is San Mateo, CA in?

San Mateo is in San Mateo County, California.

What time zone is San Mateo in?

San Mateo is in the America/Los Angeles time zone (PST, UTC-08:00 right now).

What are the coordinates of San Mateo?

Latitude 37.56031, longitude -122.31060.

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