Humboldt County, California Genealogy

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Guide to Humboldt County, California ancestry, family history, and genealogy birth records, marriage records, death records, census records, family history, and military records.


Humboldt County, California
Map of the U.S. highlighting California
Location of California in the U.S.
Founded May 12, 1853
County Seat Eureka
Address Humboldt County Courthouse
 825 5th St;
Eureka, CA 95501;
Phone 707.476.2384 

Humboldt County Website

County Information

Humboldt County, California Record Dates

Beginning Dates for Major County Records[1]
Birth Marriage Death Census Land Probate
1876 1864 1873 1850 1864 1886

County Courthouse

County Clerk has divorce, probate and court records from 1853 County Recorder has birth, marriage, death and burial and land records[2]

Wikipedia has more about this subject: Humboldt County, California

Parent Counties

12 May 1853: Humboldt County was created from Trinity County and part of the former Klamath County.
County seat: Eureka [3]

Boundary Changes

For animated maps illustrating California county boundary changes, "Rotating Formation California County Boundary Maps" (1850-1925) may be viewed for free at the website.

Records Loss

1924--Humboldt County Courthouse damaged by fire. County records were not destroyed.


Populated Places

Indian Reservations or Rancherias

The Big Lagoon Indian Rancheria is located in this county.

Neighboring Counties


Bible Records



Tombstone Transcriptions Online Tombstone Transcriptions in Print List of Cemeteries in the county Family History Library
CAGenWeb WorldCat Billion Graves
CAGenWeb Archives
Tombstone Project
Billion Graves
See California Cemeteries for more information.


For tips on accessing Humboldt County, California Genealogy census records online, see: California Census.

Church History and Records

Church records and the information they provide vary significantly depending on the denomination and the record keeper. They may contain information about members of the congregation, such as age, date of baptism, christening, or birth; marriage information and maiden names; and death date. For general information about California denominations, view the California Church Records wiki page.

LDS Ward and Branch Records

  • Hydesville

Crime and Criminals


Court Records

Ethnic, Political, or Religious Groups




Local histories are available for Humboldt County, California Genealogy. County histories may include biographies, church, school and government history, and military information. For more information about local histories, see the Wiki page section California Local Histories.

Land and Property

Land and property records can place an ancestor in a particular location, provide economic information, and reveal family relationships. Land records include: deeds, abstracts and indexes, mortgages, leases, grants and land patents.

See California Land and Property for additional information about early California land grants. After land was transferred to private ownership, subsequent transactions were usually recorded at the county courthouse and where records are currently housed.




Military History and Records

Civil War

Regiments. Service men in Humboldt County, California Genealogy served in various regiments. Men often joined a company (within a regiment) that originated in their county. Listed below are companies that were specifically formed in Humboldt County, California Genealogy:

- 1st Battalion Mountaineers, California Infantry (Union), Company A
- 1st Battalion Mountaineers, California Infantry (Union), Company B
- 1st Battalion Mountaineers, California Infantry (Union), Company C

Naturalization and Citizenship


Additional newspapers abstracts can sometimes be found using search phrases such as Humboldt County, California Genealogy newspapers in online catalogs like:



Probate Records

The county clerk is usually the custodian of probate records. The records include wills, fee books, claim registers, legacy records, inheritance records, probate ticklers, and dockets.

Content: Probate Records may give the decedent's date of death, names of his or her spouse, children, parents, siblings, in-laws, neighbors, associates, relatives, and their place of residence.

You can obtain copies of the original probate records (such as wills and estate files) by writing to the county clerk at the county courthouse.

The FamilySearch Catalog lists films of probate records. To find the records for this county, use the Place Search for California - Humboldt - Probate records.

Online Probate Records


Archives, Libraries and Museums

County Courthouse

Family History Centers

Family History Centers provide one-on-one assistance and free access to premium genealogical websites. In addition, many centers have free how-to genealogy classes. See Family History Center for more information. Search the online FHC directory for a nearby family history center.



California tax records complement land records and can supplement the years between censuses. There may be gaps of several years in the tax records of some counties. For more information, see the wiki page California Taxation.

Vital Records

Vital Records consist of births, adoptions, marriages, divorces, and deaths recorded on registers, certificates, and documents. See the CDC Where to Write website for information on acquiring copies of these records. The State office has records since July 1905. For earlier records, contact the County Recorder. See also How to order California Vital Records





Voting Registers

Genealogy Societies, Archives and Libraries

Humbolt County Historical Society
703 8th St
Eureka, California 95501
Phone:(707) 445-4342

Humboldt County Genealogical Society
2336 – G Street
Eureka CA 95501

Humboldt County Historical Society
PO Box 8000
Eureka, CA 95502

Redwood Genealogical Society
PO Box 645
Fortuna, CA 95540

Web Sites


  1. Alice Eichholz, Ancestry’s Red Book: American State, County and Town Sources, Revised ed. (Salt Lake City: Ancestry, 1992), 62-75. At various libraries (WorldCat); FHL Book 973 D27rb 1992
  2. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), Humboldt County, California. Page 84 At various libraries (WorldCat); FHL Book 973 D27e 2002.
  3. The Handybook for Genealogists: United States of America,10th ed. (Draper, UT:Everton Publishers, 2002).