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Trinity County, California
Genealogy, History & Facts

Trinity County, California Facts

Trinity County

When was Trinity County, CA Created?
Trinity County was established on February 18, 1850 as one of the original 27 counties (administered by Shasta County until 1851) . This county was named for the Trinity River, named in 1845 by Major Pearson B. Reading, who was under the mistaken impression that the stream emptied into Trinidad Bay. Trinity is the English version of Trinidad.

What is the County Seat of Trinity County, CA?
The County Seat is located in Weaverville also, the county government website is

What counties are adjacent to Trinity County, CA?
Bordering Counties are Mendocino County (south), Humboldt County (west), Siskiyou County (north), Shasta County (east), Tehama County (southeast) .

There are no incorporated Cities and towns located in Trinity County. Census-designated places include Hayfork, Lewiston, Weaverville.

Trinity County, CA Vital Records

Where can find Trinity County Birth, marriage, Divorce and Death Records?
Trinity County vital records can be found at the California Office of Vital Records has copies of birth and death records from July 1905, marriage records that occurred from 1949-1986 and 1998-1999, divorce records that occurred between 1962 and June, 1984. There is a fee for each copy requested. Please refer to the information to the Statewide Vital Records in California for current fees and application process.

You can search online for Trinity County Birth, Marriage, Divorce or Death Records. You can also Order Electronically Online or can download an application for California Birth Certificate, Marriage or Divorce Certificate, Death Certificate Applications to mail.

Vital Records can also be found in the Local Registrar of Births and Death, 11 Court Street, Courthouse, Mail to: P.O. Box 1215, Weaverville, CA 96093-1215; Office (530) 623-1215

Trinity County, CA Census Records

What Trinity County, CA census records are available?
There are many types of census records for Trinity County guide you in researching your family tree. Federal Population Schedules are available for 1850, 1860, 1870, 1880 (free index), 1890 (fragment), 1900, 1910, 1920, 1930, 1940.

Trinity Co. Mortality Schedules can be found for 1850, 1860, 1870 and 1880. Trinity Co. Industry and Agriculture can be obtained for 1850, 1860, 1870 and 1880. Trinity Co. Union Veterans Schedules is available for 1890.

Another California census is the California State Census in 1852. One can find free online and printable census forms to help you with your research. See Also California Census Records Research Guide.

Trinity County, CA Courthouse and Government Records

Trinity County Courthouse

What genealogical records can I find in the Trinity County Courthouse?
The below facts shows exactly what death, marriage, birth, property, wills, and court records are typically in Trinity County. The years listed below are the first noted records with this county. Some counties encompass land settled in the eighteenth century; their records pre-date county formation. Land transactions and vital records recorded in the county are at the county recorder's office. The county clerk general has probate books and files from the county's superior court, civil court records, and naturalizations. Divorces may be in either place, depending on how filed. See Also California Corthouse Records Research Guide.

Old Trinity County Courthouse
  • Trinity County Courthouse (all departments listed below are located here, unless otherwise noted)
  • Trinity County Recorder-Clerk is s responsible for examination and recording of all documents presented for recording that deal with establishing ownership of land in the County or as required by statute; administers the real property transfer tax law and maintains a permanent record and indexes of all documents for public viewing plus providing certified copies requested by the public; recording of all lawful documents such as deeds, deeds of trust, judgments, liens, affidavits, Uniform Commercial Code Financial Statements, etc; and the filing of Births, Deaths, and Marriages.
    • Address: 11 Court Street; Mail to: P.O. Box 1215, Weaverville, CA 96093
    • Phone: (530) 623-1215
    • Birth / Death Records: 1873
    • Marriage Records: 1857
    • Land Records: 1855
  • Trinity County Clerk of Superior Court has probate books and files from the county's superior court, civil court records, and naturalizations. Divorces may be here or in the Recorders Office, depending on how it was filed.
    • Probate Records: 1860 
    • Court Records: 1854 
  • Early California Wills
  • BLM Land Records

Trinity County, CA Societies and Family History Resources

What genealogical and historical societies, archives, museums, associations and libraries are available for Trinity County, CA?
A list of Trinity County Historical  and Genealogical Societies, Libraries, Archives. See also list of Statewide Californiia Archives, Historical & Genealogical Societies.

Where can I connect with other Trinity County, CA Researchers through message boards and forums?

What other genealogical resources are available in Trinity County, CA?
The following are web links to Genealogy, Records and Resources pertaining to Trinity County. A majority of these genealogy links fall into 3 categories: Business Sites, Private Sites or Organization Sites. Some have free access some require a payment. This is basically a listing which has been gathered or submitted. I do not recommend or promote one genealogy site above another.

Trinity Co. CA Books, Newspapers & Publications

Trinity Co. CA Cemeteries & Church Records

Trinity Co. CA Family Websites, Pictures & Histories

Trinity Co. CA General and History Websites

Trinity Co. CA Maps, Atlases & Gazetteers

Trinity Co. CA Military Records

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