Siskiyou County, California

Siskiyou 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
COUNTY OF SISKIYOU GUS Population: 42,498 (2024) ID: 123089	County	Official County Government	Contact: CHAIR PO BOX 750, YREKA CA 96097-0750
CITY OF YREKA GUS Population: 7,686 (2024) ID: 184469	Municipal	Municipal Government Within County	Contact: START UP DIRECTOR 701 4TH ST, YREKA CA 96097-3380
CITY OF MOUNT SHASTA GUS Population: 3,124 (2024) ID: 193117	Municipal	Municipal Government Within County	Contact: DEPUTY CITY CLERK 305 N MOUNT SHASTA BLVD, MOUNT SHASTA CA 96067-2293
CITY OF WEED GUS Population: 2,633 (2024) ID: 183851	Municipal	Municipal Government Within County	Contact: CITY CLERK PO BOX 470, WEED CA 96094-0470
CITY OF DUNSMUIR GUS Population: 1,618 (2024) ID: 207605	Municipal	Municipal Government Within County	Contact: CITY MANAGER 5915 DUNSMUIR AVE, DUNSMUIR CA 96025-2355
CITY OF MONTAGUE GUS Population: 1,170 (2024) ID: 203979	Municipal	Municipal Government Within County	Contact: CITY CLERK PO BOX 428, MONTAGUE CA 96064-0428
CITY OF TULELAKE GUS Population: 857 (2024) ID: 207606	Municipal	Municipal Government Within County	Contact: OFFICE CLERK PO BOX 847, TULELAKE CA 96134-0847
CITY OF DORRIS GUS Population: 817 (2024) ID: 161284	Municipal	Municipal Government Within County	Contact: MAYOR PO BOX 768, DORRIS CA 96023-0768
CITY OF FORT JONES GUS Population: 669 (2024) ID: 203978	Municipal	Municipal Government Within County	Contact: CITY CLERK PO BOX 40, FORT JONES CA 96032-0040
CITY OF ETNA GUS Population: 643 (2024) ID: 191947	Municipal	Municipal Government Within County	Contact: CITY CLERK PO BOX 460, ETNA CA 96027-0460