The following is a list of all zip codes in Marin County. There are 40 zip codes in total.
Marin County has 11 incorporated cities and towns, 20 census-designated places, and 18 unincorporated communities.
| Zip Code | City | County |
|---|---|---|
| 94901 | San Rafael | Marin County |
| 94903 | San Rafael | Marin County |
| 94904 | Greenbrae | Marin County |
| 94904 | Kentfield | Marin County |
| 94912 | San Rafael | Marin County |
| 94913 | San Rafael | Marin County |
| 94914 | Kentfield | Marin County |
| 94915 | San Rafael | Marin County |
| 94920 | Belvedere Tiburon | Marin County |
| 94920 | Belvedere | Marin County |
| 94920 | Tiburon | Marin County |
| 94924 | Dogtown | Marin County |
| 94924 | Bolinas | Marin County |
| 94925 | Corte Madera | Marin County |
| 94929 | Dillon Beach | Marin County |
| 94930 | Fairfax | Marin County |
| 94933 | Forest Knolls | Marin County |
| 94937 | Inverness | Marin County |
| 94938 | Lagunitas | Marin County |
| 94939 | Larkspur | Marin County |
| 94940 | Marshall | Marin County |
| 94941 | Mill Valley | Marin County |
| 94942 | Mill Valley | Marin County |
| 94945 | Novato | Marin County |
| 94946 | Nicasio | Marin County |
| 94947 | Novato | Marin County |
| 94948 | Novato | Marin County |
| 94949 | Novato | Marin County |
| 94950 | Olema | Marin County |
| 94956 | Point Reyes Station | Marin County |
| 94957 | Ross | Marin County |
| 94960 | San Anselmo | Marin County |
| 94963 | San Geronimo | Marin County |
| 94964 | San Quentin | Marin County |
| 94965 | Muir Beach | Marin County |
| 94965 | Sausalito | Marin County |
| 94966 | Sausalito | Marin County |
| 94970 | Stinson Beach | Marin County |
| 94971 | Tomales | Marin County |
| 94973 | Woodacre | Marin County |
| 94974 | San Quentin | Marin County |
| 94976 | Corte Madera | Marin County |
| 94977 | Larkspur | Marin County |
| 94978 | Fairfax | Marin County |
| 94979 | San Anselmo | Marin County |
Zip code lists for other counties in the San Francisco Bay Area:
