County of Marin - Board of Supervisors

Board of Supervisors
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Under California's Constitution and laws, the five members of the Board of Supervisors serve as the legislative and executive body of Marin County. The members are elected by district and they are required to live in the district they represent. Supervisor's terms are four years, and either two or three supervisors are elected every two years.

The supervisors also serve as the governing board for the Open Space District, County Free Library, Flood Control District, Lighting District, county service areas and sewer maintenance districts. Within limits prescribed by the state's Constitution and laws, the board enacts ordinances, determines policies, adopts annual budgets, fixes salaries, is responsible for ensuring that mandated functions are properly discharged, and supervises the activities of County departments. Read more about the board.

Marin County Interactive District Map

Use your mouse to explore Marin County. Click a number or city marker for detailed information about your district, city, or Supervisor.

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Belvedere

Population: 2,125
Total Area: .54 sq mi

Belvedere
450 San Rafael Avenue
Belvedere, CA 94920
(415) 435-3838

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Bolinas

Population: 1,620
Total Area: 5.826 sq mi

Bolinas
Jurisdiction: County of Marin
3501 Civic Center Drive
San Rafael, CA 94903
(415) 473-7331

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Corte Madera

Population: 9,253
Total Area: 4.406 sq mi

Corte Madera
129 Corte Madera Town Center
Corte Madera, CA 94925
(415) 924-0441

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Dillon Beach

Population: 283
Total Area: 2.984 sq mi

Dillon Beach
Jurisdiction: County of Marin
3501 Civic Center Drive
San Rafael, CA 94903
(415) 473-7331

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Fairfax

Population: 7,441
Total Area: 2.204 sq mi

Fairfax
142 Bolinas Road
Fairfax, CA 94930
(415) 453-1584

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Forest Knolls

Population: 1,835
Total Area: 4.26 sq mi

Forest Knolls
Jurisdiction: County of Marin
3501 Civic Center Drive
San Rafael, CA 94903
(415) 473-7331

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Greenbrae

Population: 11,926
Total Area: 3.243 sq mi

Greenbrae
Jurisdiction: County of Marin
3501 Civic Center Drive
San Rafael, CA 94903
(415) 473-7331

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Inverness

Population: 1,304
Total Area: 6.835 sq mi

Inverness
Jurisdiction: County of Marin
3501 Civic Center Drive
San Rafael, CA 94903
(415) 473-7331

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Kentfield

Population: 6,485
Total Area: 3.041 sq mi

Kentfield
Jurisdiction: County of Marin
3501 Civic Center Drive
San Rafael, CA 94903
(415) 473-7331

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Lagunitas

Population: 390
Total Area: 1.3 sq mi

Lagunitas
Jurisdiction: County of Marin
3501 Civic Center Drive
San Rafael, CA 94903
(415) 473-7331

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Larkspur

Population: 12,014
Total Area: 3.13 sq mi

Larkspur
400 Magnolia Avenue
Larkspur, CA 94939
(415) 927-5110

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Marshall

Population: 123
Total Area: 11.67 sq mi

Marshall
Jurisdiction: County of Marin
3501 Civic Center Drive
San Rafael, CA 94903
(415) 473-7331

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Mill Valley

Population: 13,903
Total Area: 4.847 sq mi

Mill Valley
26 Corte Madera Avenue
Mill Valley, CA 94941
(415) 388-4033

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Nicasio

Population: 96
Total Area: 1.305 sq mi

Nicasio
Jurisdiction: County of Marin
3501 Civic Center Drive
San Rafael, CA 94903
(415) 473-7331

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Novato

Population: 52,311
Total Area: 27.957 sq mi

Novato
75 Rowland Way #200
Novato, CA 94956
(415) 899-8900

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Olema

Population: 245
Total Area: 6.844 sq mi

Olema
Jurisdiction: County of Marin
3501 Civic Center Drive
San Rafael, CA 94903
(415) 473-7331

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Point Reyes

Population: 848
Total Area: 3.616 sq mi

Point Reyes
Jurisdiction: County of Marin
3501 Civic Center Drive
San Rafael, CA 94903
(415) 473-7331

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Ross

Population: 2,415
Total Area: 1.556 sq mi

Ross
PO Box 320
Ross, CA 94957
(415) 453-1453

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San Anselmo

Population: 12,336
Total Area: 2.677 sq mi

San Anselmo
525 San Anselmo Avenue
San Anselmo, CA 94960
(415) 258-4600

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San Geronimo

Population: 446
Total Area: 860 sq mi

San Geronimo
Jurisdiction: County of Marin
3501 Civic Center Drive
San Rafael, CA 94903
(415) 473-7331

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San Rafael

Population: 57,713
Total Area: 22.422 sq mi

San Rafael
1400 Fifth Ave
San Rafael, CA 94901
(415) 454-4163

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Sausalito

Population: 7,330
Total Area: 1.9 sq mi

Sausalito
420 Litho Street
Sausalito, CA 94965
(415) 289-4100

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Stinson Beach

Population: 632
Total Area: 1.459 sq mi

Stinson Beach
Jurisdiction: County of Marin
3501 Civic Center Drive
San Rafael, CA 94903
(415) 473-7331

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Tiburon

Population: 8,666
Total Area: 4.53 sq mi

Tiburon
1505 Tiburon Boulevard
Tiburon, CA 94920
(415) 435-7373

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Tomales

Population: 204
Total Area: 0.332 sq mi

Tomales
Jurisdiction: County of Marin
3501 Civic Center Drive
San Rafael, CA 94903
(415) 473-7331

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Woodacre

Population: 1,348
Total Area: 1.797 sq mi

Woodacre
Jurisdiction: County of Marin
3501 Civic Center Drive
San Rafael, CA 94903
(415) 473-7331