Trinity County, California Genealogy Guide

Trinity County, California (Map It) was created on February 18, 1850 as one of the original 27 counties (administered by Shasta County until 1851) . Trinity 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. Learn More About State of California History

Trinity County is bordered by 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.

Since its creation Trinity County boundries have changed to include these:

  • Most of Trinity County has been in the county since 1850.
  • A significant portion of the original Trinity County territory was moved to Klamath County in 1851 and then in 1855 returned to Trinity County.
  • Territory in Trinity County from 1850 to 1859 was in Mendocino County from 1859 to 1860 when it was returned to Trinity County.
  • Territory was in Mendocino County from 1850 to 1872 when it was added to Trinity County.
  • Territory which at one time was in Trinity County is now in Del Norte County, Humboldt County, and Siskiyou County

Trinity County, California Courthouse Records

Trinity County, California Courthouse
Trinity County, CA Courthouse
Old Trinity County, California Courthouse
Old Trinity County Courthouse

The Trinity County Courthouse is located in Weaverville, California. For the first year of organization, Trinity County was attached to Shasta County. Land was later added from counties Klamath (1855) and Mendocino (1860, 1872). Learn More About State of California Court, Tax, Land and Probate Records.

Courthouse History - After an 1860 grand jury reported that "bedbugs had invaded the offices of the sheriff and the clerk, had defiled the records and in several instances had even attacked a judge on the bench," Trinity County supervisors began to consider moving from the old Weaverville courthouse, which was shared with the Masonic Lodge. In 1865, the county purchased this brick building that then housed offices, hotel rooms, and the Apollo Saloon, which boasted the first piano in the county. The courthouse is still in use and serves as a centerpiece of Weaverville's Historic District.

Please contact the each clerk's department to confirm mailing address, hours, fees and other information before visiting or requesting information because contact information sometimes changes.  The Clerk's Office DOES NOT DO RESEARCH.  The documents are available to interested parties, barring confidential issues.  Most staff will assist people in finding the materials, but it is up to the individual to do the research. Some early court records from the various courts may have been sent to the California State Archives. Besides court minutes and judgements, these records include tax lists, wills, deeds, estate inventories, and marriage bonds. The California State Archives has microfilm of selected county records, 1850–1919.

The following dates indicates what vital, land, probate, and court records are in Trinity county. The date listed for each category of record is usually the earliest registration filed. The earliest date does not indicate that there are numerous records for that year and does not mean that all such events were actually registered. 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.

  • Trinity County Recorder-Clerk has Birth / Death Records from 1873, Marriage Records from 1857 and Land Records from 1855. The 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.
  • Trinity County Clerk of Superior Court has Probate Records from 1860 and Court Records from 1854. The 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.
  • Trinity County County Treasurer / Tax Collector
  • Local Registrar of Births and Deaths, 11 Court Street, Courthouse, Mail to: P.O. Box 1215, Weaverville, CA 96093-1215; Office (530) 623-1215

Trinity County, California Census Records

Trinity County, California Vital Records

Trinity County, California Resources

Trinity County, California External Links