County · California · United States
Marin County ZIP codes
28 ZIP codes · 25 cities · FIPS 06041
Key facts
- State
- California (CA)
- FIPS code
- 06041
- Population
- 258,765
- Median household income
- $142,785
- Median age
- 47.3
- Land area
- 520.4 sq mi (1,347.9 km²)
- Population density
- 497 / sq mi
- Area codes
- 209, 415, 559, 628, 707, 840, 909
Cities and ZIP codes in Marin County (25)
About this page
County figures are Census county-level values (ACS 5-year); the ZIP list shows the ZIPs whose primary county this is — a ZIP on a border can also serve neighbouring counties.
Sources: U.S. Census Bureau (2020 county relationship file, ACS 5-year) · GeoNames. Methodology.