Marin County is a county located in the northwestern part of the San Francisco Bay Area of the U.S. state of California. As of the 2020 census, the population was 262,231. Its county seat and largest city is San Rafael. Marin County is across the Golden Gate Bridge from San Francisco, and is included in the San Francisco–Oakland–Berkeley, CA Metropolitan Statistical Area.
San Anselmo is an incorporated town in Marin County, California, United States. San Anselmo is located 1.5 miles (2.4 km) west of San Rafael, at an elevation of 46 feet (14 m). It is located about 20 miles (32 km) north of San Francisco. The town is bordered by San Rafael to the east, Fairfax to the west, and Ross to the south. Mount Tamalpais dominates the view to the south. The population was 12,830 at the 2020 census.
Corte Madera is an incorporated town in Marin County, California. Corte Madera is located 3.25 miles (5.2 km) south of San Rafael, at an elevation of 39 feet. The population was 10,222 at the 2020 census. The town was named after the Spanish imperative command "chop wood", as the area was famous for producing redwood tree lumber which was used in the construction of the city of San Francisco.
Kentfield is a census-designated place (CDP) in Marin County, California, United States, just north of San Francisco. Kentfield is located 2 miles (3 km) southwest of downtown San Rafael, at an elevation of 115 feet. The population was 6,808 at the 2020 census. The ZIP codes are 94904 for street addresses, and 94914 for PO boxes, and are shared with the neighboring community of Greenbrae.
Larkspur is a city in Marin County, California, United States. Larkspur is located 3 miles (4.8 km) south of San Rafael, at an elevation of 43 feet (13 m). As of the 2020 census, the city's population was 13,064. Larkspur's Police Department is shared with that of the neighboring Corte Madera and town of San Anselmo as the Central Marin Police Authority. Intersecting Larkspur's downtown is Madrone Canyon, a residential area amidst a redwood grove.
Mill Valley is a city in Marin County, California, United States, located about 14 miles (23 km) north of San Francisco via the Golden Gate Bridge and 52 miles (84 km) from Napa Valley. The population was 14,231 at the 2020 census.
Area codes 415 and 628 are telephone area codes in the North American Numbering Plan (NANP) for the city of San Francisco and its northern suburbs in Marin County, and the northeast corner of San Mateo County in the U.S. state of California. Area code 415 was one of the eighty-six original North American area codes established in 1947, but modified in geographic configuration later. Area code 628 was assigned in 2015 to form an overlay in that numbering plan area in mitigation of central office prefix exhaustion.
Mount Tamalpais, known locally as Mount Tam, is a peak in Marin County, California, United States, often considered symbolic of Marin County. Much of Mount Tamalpais is protected within public lands such as Mount Tamalpais State Park, the Marin Municipal Water District watershed, and National Park Service land, such as Muir Woods.
Archie Williams High School is a public secondary school located in San Anselmo, California. It is named after a former math and computing teacher Archie Williams, who was also a gold medalist in the 1936 Summer Olympics, a flight instructor with the Tuskegee Airmen, and one of the first African-American meteorologists. It was originally named Sir Francis Drake High School, after Francis Drake. It changed its name in 2021, after the George Floyd protests spurred a worldwide reexamination of place names and monuments connected to racism.
Greenbrae is a small unincorporated community in Marin County, California. It is located 1.5 miles (2 km) south-southeast of downtown San Rafael, at an elevation of 33 feet, and adjacent to U.S. Route 101 at the opening of the Ross Valley. Part of Greenbrae is an unincorporated community of the county while the remaining area is inside the city limits of Larkspur. The ZIP code is 94904, and is shared with the neighboring Census-designated place (CDP) of Kentfield. The community is in area codes 415 and 628.
Redwood High School is a public secondary school located in the city of Larkspur, Marin County, California, approximately 11 miles north of San Francisco. Redwood High is part of the Tamalpais Union High School District (TUHSD). The school serves the cities of Belvedere, Corte Madera, Greenbrae, Kentfield, Larkspur, Ross, and Tiburon.
Lagunitas Creek is a 24 miles (39 km)-long northward-flowing stream in Marin County, California. It is critically important to the largest spawning runs of endangered coho salmon in the Central California Coast Coho salmon Evolutionary Significant Unit.
Dogtown is an unincorporated community in the rural West Marin region of coastal Marin County, California in the San Francisco Bay Area's North Bay. It lies at an elevation of 187 feet. With a population of 30, the town is located beside the Golden Gate National Recreation Area and Point Reyes National Seashore, in the Olema Valley west of the Bolinas Ridge mountain range.
Marin County, California contains many public and private schools and a few higher education institutions.
Larkspur-Corte Madera School District is a school district headquartered in Larkspur, California. Its schools include Neil Cummins Elementary School, Henry Hall Middle School, and the Cove School.
Corte Madera Creek is a short stream which flows southeast for 4.5 miles (7.2 km) in Marin County, California. Corte Madera Creek is formed by the confluence of San Anselmo Creek and Ross Creek in Ross and entering a tidal marsh at Kentfield before connecting to San Francisco Bay near Corte Madera.
The Northwestern Pacific Railroad operated a network of electric interurban lines in Marin County, California from 1903 to 1941. The lines ran to Sausalito at the southern tip of the county, where connecting ferries ran to San Francisco. Trains consisted of electric multiple units powered by third rail electrification. The lines were the first third-rail electrification in California, and the first major railroad to use alternating current signals.
Ross Valley School District (RVSD) is a public TK-8 school district located 13 miles north of San Francisco, on the north side of Mount Tamalpais, in Marin County, California.
