Siskiyou County, California Genealogy

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United States Gotoarrow.png California Gotoarrow.png Siskiyou County

County Courthouse

Siskiyou County Assesor-Recorder
311 4th Street, Room 108
Yreka, CA 96097
Siskiyou County Clerk's Office
510 North Main Street
Yreka, CA 96097

Quick Facts

Wikipedia has more about this subject: Siskiyou County, California

Parent Counties

22 March 1852: Siskiyou County was created from Shasta and former Klamath Counties. County seat: Yreka [1]

Boundary Changes

1852: County formed from Shasta and Klamath Counties.

1874: February, part of county given to newly formed Modoc County.

1874: May, Klamath County dissolved with Siskiyou County absorbing some of the area.

1887: Land exchanged with Del Norte County.

1901: Small area of land gained from Humboldt County.

See "Historical County Boundary Maps - BETA 2"

Record Loss

Town of Deadwood known to have burned down in 1861.

Town of Klamathon known to have burned down in 1902.


Populated Places (over 5,000 people)


Populated Places (over 1,000 people)

Dunsmuir, Montague, Mount Shasta City, Tulelake, Weed

Populated Places (under 1,000 people)

Dorris, Etna, Fort Jones

Census Designated Places and Unincorporated Communities

Big Springs, Callahan, Carrick, Clear Creek, Edgewood, Forks of Salmon, Fort Goff, Gazelle, Greenview, Grenada, Hamburg, Hatfield, Happy Camp, Hilt, Hornbrook, Horse Creek, Klamath River, Klamathon, Lake Shastina, Lake Siskiyou, Macdoel, McCloud, Mount Hebron, Mugginsville, Sawyers Bar, Seiad Valley, Tennant, Thompson Creek

Additional and Former Populated Places

Mount Shasta City has had a number of names including Wagon Valley, Strawberry Valley and, until 1924, Sisson. Ager, Bartle, Beswick, Black Bear, Bogus, Butte, Cecilville, Chestnut, Coles, Copco, Cottage Grove, Deadwood, Francis, Gottsville, Hooperville, Igerha, Liberty, Little Shasta, Mott, Mountain, Oak Bar, Oro Fino, Schlitz, Scott Bar, Scott River, Scott Valley, Shasta Springs, Snowden, Somes Bar, Squaw Valley, Table Rock, Tailholt, Upper Soda Springs, Walker

Neighboring Counties


Archives and Libraries

Siskiyou County Library
719 4th Street
Yreka, CA 96097
Searchable Siskiyou Pioneer Index
Searchable Siskiyou County Obituaries (1854-1990) Index
Searchable Siskiyou County Newspaper Index A Digital Library of Primary Sources in Siskiyou County History


Siskiyou Cemeteries Central

Church History and Records

LDS Ward and Branch Records

  • Etna

FHL Catalog

California, Siskiyou Films

California, Siskiyou, Cecilville

California, Siskiyou, Dunsmuir

California, Siskiyou, Etna

California, Siskiyou, Forks of the Salmon

California, Siskiyou, Fort Jones

California, Siskiyou, Greenview Township

California, Siskiyou, Henley

California, Siskiyou, Hilt

California, Siskiyou, McCloud

California, Siskiyou, Montague

California, Siskiyou, Sawyers Bar

California, Siskiyou, Scott Valley Township

California, Siskiyou, Weed

California, Siskiyou, Yreka

Court Records


Land and Property



Early migration routes to and from Siskiyou County, California Genealogy for emigrant settlers included:[2][3] :

Military History and Records


Probate Records


Vital Records

Societies, Libraries and Museums

Family History Centers



  1. The Handybook for Genealogists: United States of America,10th ed. (Draper, UT:Everton Publishers, 2002).
  2. National Park Service, "California Trail" (map) in California National Historic Trail at (accessed 5 August 2011).
  3. Wikipedia contributors, "California Trail" in Wikipedia: the Free Encyclopedia at (accessed 5 August 2012).