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Welcome to Marin County ...

Time Zone: Marin County lies in the Pacific Time Zone (PST/PDT) and observes daylight saving time.

The community of San Rafael is the Seat for Marin County.

Marin County is one of the original counties of California and was founded February 18, 1850.

From the Census Estimates for 2019, <1> Marin had a population of 258,826 people. This is an increase of 2.34% since the last Census (which gave a population of 252,904 people in 2010).

At the time of the 2010 Census, Marin represented 0.68% of the total population of California.

Below are some of the communities located in Marin County:

  • Belvedere
    (9 miles [14.5 km] to the southeast)
  • Corte Madera
    (4 miles [6.4 km] to the southeast)
  • Fairfax
    (Less than 2 miles to the west)
    • Jump to our Gazetteer entry for Fairfax
    • Fairfax is located in Marin County (CA)
    • Population from the 2020 Census: 7,561 people
    • Jump to TripAdvisor's Tourism page for Fairfax <2>
  • Larkspur
    (4 miles [6.4 km] to the southeast)
  • Mill Valley
    (5 miles [8 km] to the south)
  • Novato
    (8 miles [12.9 km] to the north)
    • Jump to our Gazetteer entry for Novato
    • Novato is located in Marin County (CA)
    • Population from the 2020 Census: 53,351 people
    • Jump to TripAdvisor's Tourism page for Novato <2>
  • Ross
    (Less than 2 miles to the southeast)
    • Jump to our Gazetteer entry for Ross
    • Ross is located in Marin County (CA)
    • Population from the 2020 Census: 2,479 people
    • Jump to TripAdvisor's Tourism page for Ross <2>
  • San Anselmo
    (Less than 2 miles to the southeast)
  • San Rafael
    (2 miles [3.2 km] to the east)
  • Sausalito
    (10 miles [16.1 km] to the southeast)
  • Tiburon
    (9 miles [14.5 km] to the southeast)
    • Jump to our Gazetteer entry for Tiburon
    • Tiburon is located in Marin County (CA)
    • Population from the 2020 Census: 9,086 people
    • Jump to TripAdvisor's Tourism page for Tiburon <2>

Websites of Interest ...

Footnotes ...

<1>On a yearly basis, the US Census Bureau creates an estimate of the county's population. Keep in mind that this is an estimate and not an actual count. The last physical count was the 2010 Census and the next count will be for the 2020 Census.
<2>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
 

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This page was last modified/updated: 23 Mar 2025