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If you would like to learn more about becoming a County Coordinator and a part of The CAGenWeb Project, or if you have any other questions relating to this county, please read our Policies & Procedures and then contact our State Coordinator.

The CAGenWeb Project sincerely thanks the dedicated volunteers who devoted time and effort toward making this site a successful one:

Jacquie Ansell, County Coordinator 1996-1997
Carolyn Feroben, County Coordinator 1997-2006
Sharon Dulcich, County Co-Coordinator 2001-2003
Colleen Pustola, County Coordinator 2006-2008
Sharon Dulcich, County Coordinator 2008-2012
Martha A, Crosley-Graham, County Coordinator 2013-2014
Michelle Hoftiezer, County Coordinator 2015-2017

State Coordinator: Elizabeth E. Bullard
Assistant State Coordinator: Marc Irish
Assistant State Coordinator: Bob Jenkins



A Little Bit About Mariposa County

California Map with Mariposa Highlighted

iMariposa County was one of the original counties of California, created at the time of statehood in 1850. While it began as the state's largest county, territory that was once part of Mariposa was ceded over time to form all or part of twelve other counties, including all of Merced, Madera, Fresno, Tulare, Kings, and Kern Counties; and parts of San Benito, Mono, Inyo, San Bernardino, and Los Angeles Counties. Thus, Mariposa County is known as the "Mother of Counties".

Mariposa County's original seat was a now-defunct hamlet known as Agua Fria (Spanish for "cold water"), about 3 miles directly west of Mariposa proper. Charles Fremont moved the county seat to Mariposa in 1854, resulting in the construction of the Mariposa County Courthouse which occupies an entire block. This handsome, white judicial building erected with whip-sawed wood from nearby forests is the oldest courthouse still in use in California. Also particularly noteworthy is the courthouse's clock tower and bell, which chimes every hour on the hour.

The county took its name from Mariposa Creek, which was so named by Spanish explorers in 1806, when they discovered a great cluster of butterflies ("mariposas" in Spanish and Portuguese) in the foothills of the Sierras. Each year, the first weekend in May, residents mark the annual arrival of migrating monarch butterflies with a "Butterfly Days" festival and parade.

Mariposa County is located at the southern end of California's Mother Lode region. During the California Gold Rush, great quantities of the prized mineral were found and extracted, first in local stream beds and later in hard rock mines. One of the most notable beneficiaries of this wealth was the famed explorer and 1856 Republican presidential candidate, John Charles Frémont.

Source: Wikipedia


Project Links:

The CAGenWeb Project
CAGenWeb Brochure (pdf file)
The USGenWeb Project
USGenWeb Special Projects
The WorldGenWeb Project


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County Forum (



Neighboring Counties

Neighbor Map

Tuolumne (north)
Madera (south and east)
Merced (south and west)
Stanislaus (northwest corner)


This site was updated last on 28-Mar-2018 18:40