County of Marin - Board of Supervisors
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.
Belvedere
Population: 2,125
Total Area: .54 sq mi
Belvedere
450 San Rafael Avenue
Belvedere, CA 94920
(415) 435-3838
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
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
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
Fairfax
Population: 7,441
Total Area: 2.204 sq mi
Fairfax
142 Bolinas Road
Fairfax, CA 94930
(415) 453-1584
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
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
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
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
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
Larkspur
Population: 12,014
Total Area: 3.13 sq mi
Larkspur
400 Magnolia Avenue
Larkspur, CA 94939
(415) 927-5110
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
Mill Valley
Population: 13,903
Total Area: 4.847 sq mi
Mill Valley
26 Corte Madera Avenue
Mill Valley, CA 94941
(415) 388-4033
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
Novato
Population: 52,311
Total Area: 27.957 sq mi
Novato
75 Rowland Way #200
Novato, CA 94956
(415) 899-8900
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
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
Ross
Population: 2,415
Total Area: 1.556 sq mi
Ross
PO Box 320
Ross, CA 94957
(415) 453-1453
San Anselmo
Population: 12,336
Total Area: 2.677 sq mi
San Anselmo
525 San Anselmo Avenue
San Anselmo, CA 94960
(415) 258-4600
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
San Rafael
Population: 57,713
Total Area: 22.422 sq mi
San Rafael
1400 Fifth Ave
San Rafael, CA 94901
(415) 454-4163
Sausalito
Population: 7,330
Total Area: 1.9 sq mi
Sausalito
420 Litho Street
Sausalito, CA 94965
(415) 289-4100
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
Tiburon
Population: 8,666
Total Area: 4.53 sq mi
Tiburon
1505 Tiburon Boulevard
Tiburon, CA 94920
(415) 435-7373
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
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