County ProfileCA
Marin County
Population: 262,321 · 42 ZIP codes
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
262,321
People
Median age
47.4
Housing
Total households
103,018
Income
Median household income
$149,091
Housing
Total housing units
112,116
Employment
Employment rate
58.5%
Education
Bachelor’s degree or higher
61.1%
Healthcare
Insured population
96.2%
County details
Local time 01:50:42(PT)| Name | Marin |
|---|---|
| Total ZIP codes | 42total |
| ZIP codes (by type) | 20 Standard21 PO Box1 Unique |
| Area code | 209, 350, 369, 415, 628, 707 |
| Timezone | Pacific Time (PT) |
| Coordinates | 38.0513667, -122.7463958 |
| Land area | 520.1 sq miles(1,347.2 km²) |
Map of Marin county, California with ZIP codes
Cities and Communities in Marin County
Compare the largest cities in Marin County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.
| City | Population | Median incomeHousehold | ZIP codes |
|---|---|---|---|
| San Rafael | 61,271 | $119,435 | 5ZIPs |
| Novato | 53,225 | $115,736 | 5ZIPs |
| Mill Valley | 14,231 | $206,212 | 2ZIPs |
| Larkspur | 13,064 | $140,417 | 2ZIPs |
| Belvedere Tiburon | 13,010 | — | 1ZIPs |
| San Anselmo | 12,830 | $173,641 | 2ZIPs |
| Greenbrae | 12,718 | — | 1ZIPs |
| Corte Madera | 10,222 | $232,763 | 2ZIPs |
| Sausalito | 7,269 | $182,357 | 2ZIPs |
| Kentfield | 6,808 | $249,896 | 1ZIPs |
| Strawberry | 5,447 | $157,661 | 1ZIPs |
| San Quentin | 4,264 | — | 2ZIPs |
| Ross | 2,338 | $250,001 | 1ZIPs |
| Fairfax | 1,879 | $30,417 | 2ZIPs |
| Bolinas | 1,483 | $100,625 | 1ZIPs |
| Woodacre | 1,410 | $231,953 | 1ZIPs |
| Inverness | 1,379 | $80,176 | 1ZIPs |
| Forest Knolls | 1,226 | — | 1ZIPs |
| Point Reyes Station | 895 | $112,813 | 1ZIPs |
| Lagunitas | 683 | — | 1ZIPs |
| Stinson Beach | 541 | $132,857 | 1ZIPs |
| San Geronimo | 510 | $171,932 | 1ZIPs |
| Marshall | 319 | — | 1ZIPs |
| Dillon Beach | 246 | $209,536 | 1ZIPs |
| Tomales | 187 | — | 1ZIPs |
| Nicasio | 81 | $250,001 | 1ZIPs |
| Olema | 60 | — | 1ZIPs |
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP Codes in Marin County
Review the most populated postal areas across Marin County. Use the ranking below to compare resident density and demographic scales between the county's major zones.
| ZIP | City | Median incomeHousehold | Population (ZIP) |
|---|---|---|---|
| 94901 | San Rafael | $115,330 | 43,338 |
| 94941 | Mill Valley | $209,870 | 31,480 |
| 94903 | San Rafael | $142,083 | 30,514 |
| 94947 | Novato | $128,766 | 24,870 |
| 94945 | Novato | $107,790 | 17,876 |
| 94949 | Novato | $120,758 | 17,588 |
| 94960 | San Anselmo | $185,170 | 15,920 |
| 94920 | Belvedere Tiburon | $246,045 | 13,010 |
| 94904 | Greenbrae | $169,118 | 12,718 |
| 94965 | Sausalito | $146,946 | 11,447 |
| 94925 | Corte Madera | $232,763 | 10,204 |
| 94930 | Fairfax | $145,362 | 8,729 |
| 94939 | Larkspur | $203,988 | 7,465 |
| 94964 | San Quentin | $115,192 | 4,264 |
| 94957 | Ross | $250,001 | 1,858 |
| 94956 | Point Reyes Station | $82,205 | 1,684 |
| 94973 | Woodacre | $231,094 | 1,516 |
| 94924 | Bolinas | $101,458 | 1,507 |
| 94933 | Forest Knolls | $133,006 | 1,226 |
| 94937 | Inverness | $78,281 | 935 |
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS