What Cities Are in Marin County?

Marin County is a small county north of San Francisco in northern California. With a population of 262,231 as of the 2020 census, it is the twenty-sixth largest county in California.

Marin County has eleven incorporated cities and towns and several other census-designated places and unincorporated areas. Of these eleven, there are six cities and five towns in Marin County, California.

What Cities Are in Marin County?

The following is a Marin County map with cities and towns labeled.

Marin County Map With Cities and Towns

The furthest city to the north is Novato. Novato has a population of 53,225.

Just below Novato is the city of San Rafael. With a population of 61,271, San Rafael is the largest of the eleven incorporated towns and cities and is the county seat.

To the southwest of San Rafael are the towns of Fairfax, San Anselmo, and Ross.

Fairfax is one of the smaller towns in Marin County, with a population of 7,605. San Anselmo is a little larger, with a population of 12,830, and Ross is smaller, with a population of 2,338.

To the south are Larkspur, Corte Madera, and Mill Valley.

Larkspur has a population of 13,064, while Corte Madera has a population of 10,222. These two municipalities are adjacent and considered the “Twin Cities” of Marin County.

Mill Valley is slightly larger, with a population of 14,231.

To the east are Tiburon and Belvedere.

Tiburon has a population of 9,146 and Belvedere has a population of 2,126. Belvedere is the smallest of the incorporated cities and towns in Marin County.

Sausalito is the furthest south and the closest to San Francisco. With a population of 7,269, it is the third smallest in Marin County.

San RafaelCity61,271
Mill ValleyCity14,231
San AnselmoTown12,830
Corte MaderaTown10,222

In addition to these eleven incorporated cities and towns, there is a large area of unincorporated Marin County.

There are twenty census-designated areas:

  • Alto
  • Black Point-Green Point
  • Bolinas
  • Dillon Beach
  • Inverness
  • Kentfield
  • Lagunitas-Forest Knolls
  • Lucas Valley-Marinwood
  • Marin City
  • Muir Beach
  • Nicasio
  • Point Reyes Station
  • San Geronimo
  • Santa Venetia
  • Sleepy Hollow
  • Stinson Beach
  • Strawberry
  • Tamalpais-Homestead Valley
  • Tomales
  • Woodacre

And eighteen unincorporated areas:

  • Bel Marin Keys
  • Burdell
  • California Park
  • Dogtown
  • Fallon
  • Greenbrae
  • Hamlet
  • Ignacio
  • Inverness Park
  • Las Gallinas
  • Los Ranchitos
  • Marconi
  • Marshall
  • Olema
  • Paradise Cay
  • San Quentin
  • Shafter
  • Tocaloma

Most of West Marin County is unincorporated.

Do you live in Marin County? What’s your favorite city or town?

Austin Fernald

Austin Fernald is a California certified residential appraiser and the founder of Realvals. He writes about the Bay Area real estate market, as well as the real estate appraisal industry as a whole.

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