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Mendocino County, California
Genealogy, History & Facts

Mendocino County, California Facts

When was Mendocino County, CA Created?
Mendocino County was established on February 18, 1850. This county derived its name from Cape Mendocino, which was probably named in honor of either Antonio de Mendoza, Viceroy of New Spain, 1535-1542 (who sent the Juan Cabrillo Expedition to this coast in 1542), or Lorenzo Suarez de Mendoza, Viceroy from 1580 to 1583. Mendocino is an adjective form of the family name of Mendoza.

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

What counties are adjacent to Mendocino County, CA?
Bordering Counties are Sonoma CountyLake CountyGlenn CountyTehama CountyTrinity CountyHumboldt County .

Mendocino County, CA Vital Records

Where can find Mendocino County Birth, marriage, Divorce and Death Records?
Mendocino 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 Mendocino County Birth, Marriage, Divorce or Death Records. You can also Order Electronically Online or can download an application for California Birth CertificateMarriage or Divorce CertificateDeath Certificate Applications to mail.

Vital Records can also be found in the Local Registrar of Births and Death, 1120 S. Dora Street, Room 196, Ukiah, CA 95482; Office (707) 472-2772

Mendocino County, CA Census Records

What Mendocino County, CA census records are available?
There are many types of census records for Mendocino County guide you in researching your family tree. Federal Population Schedules are available for 1850186018701880 (free index)1890 (fragment)19001910192019301940.

Mendocino Co. Mortality Schedules can be found for 1850, 1860, 1870 and 1880. Mendocino Co. Industry and Agriculture can be obtained for 1850, 1860, 1870 and 1880. Mendocino 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.

Mendocino County, CA Courthouse and Government Records

Mendocino County Courthouse

What genealogical records can I find in the Mendocino County Courthouse?

Researchers frequently overlook the great importance of Mendocino County court, probate, and land records data as a useful resource of ancestry and genealogy information. Buried away in California courthouses and archives everywhere are the ambitions and frustrations of countless California residents.

The possibilities are excellent that your forefathers have left a comprehensive document of at least a number of facets of their lives in the Mendocino County court records. Even if your forebears is not referred to in a Court case, contemplate all of the other procedures that could have lead to him or her to appear in court records. See Also California Corthouse Records Research Guide.

Mendocino County, CA Societies and Family History Resources

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

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

What other genealogical resources are available in Mendocino County, CA?
The following are web links to Genealogy, Records and Resources pertaining to Mendocino 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.

Mendocino Co. CA Books, Newspapers & Publications

Mendocino Co. CA Cemeteries & Church Records

Mendocino Co. CA Family Websites, Pictures & Histories

Mendocino Co. CA General and History Websites

Mendocino Co. CA Maps, Atlases & Gazetteers

Mendocino Co. CA Military Records