Marin County, California
Marin County profile, demographic data, and geographic information.
Local Government & Public Administration
Authoritative general-purpose local government units serving this area
U.S. Census Bureau GUS (2026) / GMAF
| Government Unit | Unit Type | Jurisdiction Role | Contact / Address |
|---|---|---|---|
|
GUS Population: 256,400 (2024)
ID: 100630
|
County | Official County Government |
Contact: COUNTY ADMINSTRATOR
3501 CIVIC CENTER DR, RM 325, SAN RAFAEL CA 94903-4176
|
|
GUS Population: 59,961 (2024)
ID: 193112
|
Municipal | Municipal Government Within County |
Contact: MANAGEMENT ANALYST
PO BOX 151560, SAN RAFAEL CA 94915-1560
|
|
GUS Population: 52,311 (2024)
ID: 123124
|
Municipal | Municipal Government Within County |
Contact: FINANCE MANAGER
922 MACHIN AVE, NOVATO CA 94945-3233
|
|
GUS Population: 13,904 (2024)
ID: 123123
|
Municipal | Municipal Government Within County |
Contact: ASSISTANT TO THE CITY MGR
26 CORTE MADERA AVE, MILL VALLEY CA 94941-1830
|
|
GUS Population: 12,807 (2024)
ID: 161203
|
Municipal | Municipal Government Within County |
Contact: FINANCE DIRECTOR
400 MAGNOLIA AVE, LARKSPUR CA 94939-2035
|
|
GUS Population: 12,645 (2024)
ID: 161204
|
Municipal | Municipal Government Within County |
Contact: TOWN MANAGER
525 SAN ANSELMO AVE, SAN ANSELMO CA 94960-2682
|
|
GUS Population: 10,006 (2024)
ID: 100695
|
Municipal | Municipal Government Within County |
Contact: DIRECTOR OF ADMINISTRATIVE SERVICES
PO BOX 159, CORTE MADERA CA 94976-0159
|
|
GUS Population: 8,933 (2024)
ID: 161206
|
Municipal | Municipal Government Within County |
Contact: ASSOCIATE PLANNER
1505 TIBURON BLVD, TIBURON CA 94920-2530
|
|
GUS Population: 7,476 (2024)
ID: 161202
|
Municipal | Municipal Government Within County |
Contact: TOWN MANAGER
142 BOLINAS RD, FAIRFAX CA 94930-1696
|
|
GUS Population: 7,075 (2024)
ID: 161205
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
420 LITHO ST, SAUSALITO CA 94965-2921
|
|
GUS Population: 2,297 (2024)
ID: 100696
|
Municipal | Municipal Government Within County |
Contact: HEIDI SCOBLE - PLANNING MANAGER
PO BOX 320, ROSS CA 94957-0320
|
|
GUS Population: 2,080 (2024)
ID: 123122
|
Municipal | Municipal Government Within County |
Contact: CITY MANAGER
450 SAN RAFAEL AVENUE, BELVEDERE CA 94920
|