Marin County ZIP Codes (94901 – 94979) – California


Marin County is located in the northern part of the state of California, United States, just north of San Francisco across the Golden Gate Bridge. ZIP codes in Marin County range from 94901 to 94979 and are administered by the United States Postal Service (USPS) to ensure accurate mail delivery, logistics, and local administration across cities, towns, coastal communities, rural areas, and neighborhoods.

Key Information About Marin County ZIP Codes

ItemDetails
CountyMarin County
StateCalifornia
ZIP Code Range94901 – 94979
County SeatSan Rafael
Largest CityNovato
CountryUnited States
ContinentNorth America
Postal AuthorityUnited States Postal Service (USPS)

ZIP Codes of Marin County by City & Community

For more details on ZIP codes in Marin County, see the tables of cities, towns, communities, and notable neighborhoods below.

San Rafael & Nearby Neighborhoods Area (94901 – 94915)

Place / LocationZIP CodeState
San Rafael Downtown94901California
San Rafael North94903California
Greenbrae94904California
Kentfield94914California
San Rafael South94912California
San Rafael East94913California
San Rafael West94915California

Novato Area (94945 – 94949, 94998)

Place / LocationZIP CodeState
Novato Central94945California
Novato North94947California
Novato East94948California
Novato South94949California
Novato PO Boxes94998California
Black Point (Novato vicinity)94945California
Bel Marin Keys (Novato vicinity)94949California
Ignacio (Novato vicinity)94949California

Tiburon, Belvedere & Coastal Bay Area (94920)

Place / LocationZIP CodeState
Tiburon94920California
Belvedere94920California
Tiburon Peninsula94920California
Marin Islands vicinity94920California
Bay View Areas94920California

Southern Marin & Ross Area (94924 – 94957)

Place / LocationZIP CodeState
Bolinas94924California
Ross94957California
Woodacre94973California
San Anselmo94960California
San Anselmo East94979California
Fairfax94930California
Fairfax Rural94978California
Forest Knolls / Lagunitas Region94933California
Lagunitas94938California
Inverness94937California
Marshall94940California
Olema94950California
Point Reyes Station94956California

Larkspur, Corte Madera & Surrounds (94939 – 94976)

Place / LocationZIP CodeState
Larkspur94939California
Corte Madera94925California
Corte Madera (Alternate)94976California
Kentfield (Corte Madera vicinity)94904California
Lucas Valley‑Marinwood94903California
San Quentin94964California

Mill Valley & Sausalito Area (94941 – 94966)

Place / LocationZIP CodeState
Mill Valley Central94941California
Mill Valley North94942California
Sausalito Central94965California
Sausalito Bay Area94966California
Marin City94941California

Coastal Marin & Recreational Areas (94970 – 94974)

Place / LocationZIP CodeState
Stinson Beach94970California
Tomales94971California
Woodacre & Surrounds94973California
San Geronimo & Ridge Areas94963California

Other Marin County Communities & Rural Areas

Marin County also includes smaller unincorporated or rural communities and local place names that fall under the ZIP codes listed above, including coastal and inland regions spanning the Marin Headlands, Mount Tamalpais vicinity, and the Ross Valley area.

About Marin County ZIP Codes

Each ZIP code in Marin County corresponds to cities, towns, coastal and bay communities, rural areas, and neighborhoods, supporting efficient mail delivery and accurate location identification. From the urban and cultural hub of San Rafael, to the hillside and bayfront neighborhoods of Mill Valley and Tiburon, and the scenic coastal points along Stinson Beach and Point Reyes Station, using the correct ZIP code ensures reliable postal service, logistics support, emergency response coordination, and precise address administration for residents, businesses, and government services throughout the county.