Written and fact-checked by Mukesh Kumar | Last Updated: October 28,2026 | 14:35 ET
Map of Marin County - Marin County is a county located in the U.S. state of California. Marin County Map showing cities, highways, important places and water bodies. Get Where is Marin County located in the map, major cities in Marin county, population, areas, and places of interest.
Marin County Map, California
About Marin County Map, California: The map showing the county boundary, county seat, major cities, highways, water bodies and neighbouring counties.
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About Marin County, California
Marin County is a county located in the northern part of the state of California in the United States. Its county seat is San Rafael. The county is known for its natural beauty, including the rugged coastline, redwood forests, and picturesque hillsides.
Marin County is a county located in the U.S. state of California. It's county seat is San Rafael. As per 2020 census, the population of Marin County is 260206 people and population density is square miles. According to the United States Census Bureau, the county has a total area of 520 sq mi (1,347 km2). Marin County was established on 1850. The county is known for its high quality of life, strong economy, and vibrant arts and cultural scene. Outdoor recreational activities such as hiking, biking, and water sports are popular in the area.
San Rafael is the largest community in Marin County and serves as the county seat. Other communities in the county include Novato, Mill Valley, and Sausalito.If you have any specific questions about Marin County, feel free to ask and I'll do my best to assist you!
Facts about Marin County, California
| Country | United States |
| State | California |
| Region | San Francisco Bay Area (North Bay) |
| County Seat | San Rafael |
| Named After | Chief Marin (Marinero) |
| Established | 1850 |
| Organized | 1850 |
| Coordinates | 38.0834° N, 122.7633° W |
| Total Area | 828 sq mi |
| Land Area | 520 sq mi |
| Water Area | 308 sq mi |
| Population (2020) | 262,321 |
| Population Rank | Mid-sized county in California |
| Major Cities | San Rafael, Novato, Mill Valley, Sausalito |
| Main Industries | Healthcare, Education, Tourism, Professional Services |
| Major Airport | None (nearest major airports outside the county) |
| Time Zone | Pacific Time (UTC−08:00) |
| Known For | Golden Gate Bridge (part), Marin Headlands, Mount Tamalpais, Coastal scenery |
| Website | https://www.marincounty.org |
Ctities and Towns in Marin County
| City Name | Type | Population (2020) | Pop. Density | Area | Incorporated |
|---|---|---|---|---|---|
| Belvedere | City | 2,126 | 4,088.5/sq mi (1,578.6/km2) | 0.52 sq mi (1.3 km2) | December 24, 1896 |
| Corte Madera | Town | 10,222 | 3,234.8/sq mi (1,249.0/km2) | 3.16 sq mi (8.2 km2) | June 10, 1916 |
| Fairfax | Town | 7,605 | 3,410.3/sq mi (1,316.7/km2) | 2.23 sq mi (5.8 km2) | March 2, 1931 |
| Larkspur | City | 13,064 | 4,354.7/sq mi (1,681.3/km2) | 3 sq mi (7.8 km2) | March 1, 1908 |
| Mill Valley | City | 14,231 | 2,977.2/sq mi (1,149.5/km2) | 4.78 sq mi (12.4 km2) | September 1, 1900 |
| Novato | City | 53,225 | 1,936.9/sq mi (747.8/km2) | 27.48 sq mi (71.2 km2) | January 20, 1960 |
| Ross | Town | 2,338 | 1,498.7/sq mi (578.7/km2) | 1.56 sq mi (4 km2) | August 21, 1908 |
| San Anselmo | Town | 12,830 | 4,787.3/sq mi (1,848.4/km2) | 2.68 sq mi (6.9 km2) | April 9, 1907 |
| San Rafael | City | 61,271 | 3,693.2/sq mi (1,426.0/km2) | 16.59 sq mi (43 km2) | February 18, 1874 |
| Sausalito | City | 7,269 | 4,130.1/sq mi (1,594.6/km2) | 1.76 sq mi (4.6 km2) | September 4, 1893 |
| Tiburon | Town | 9,146 | 2,041.5/sq mi (788.2/km2) | 4.48 sq mi (11.6 km2) | June 23, 1964 |
Places to Visit in Marin County
Top places to visit in Marin includes Muir Woods National, Golden Gate National, Point Reyes National, Golden Gate Bridge, Marin Headlands, Point Bonita Lighthouse, Battery Spencer, Bay Area Discovery, Muir Beach Overlook, The Marine Mammal Center, China Camp State Park, Golden Gate View Point, Tomales Bay State Park, Muir Beach, Sausalito.
Highways in Marin County
Interstate 580, U.S. Route 101 (Redwood Highway), State Route 1, State Route 37, State Route 131.
Nearest Airports
Nearest airport of Marin is San Francisco International Airport (SFO / KSFO).
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