Mariposa County Birth Records
Search Birth Records:
Mariposa County Birth Records (1905-1995)
CaliforniaBirthIndex.org provides free access to Mariposa County birth records from 1905 to 1995. Search by name to find birth dates, parents' names, and county of birth — completely free, no registration required.
What You'll Find in Mariposa County Birth Records
Each birth record in our Mariposa County database includes:
— Full name (first, middle, last)
— Date of birth
— Sex
— Mother's maiden name
— County of birth (Mariposa County)
The California Birth Index does not include time of birth, hospital name, or parents' first names. For those details, you'll need a certified birth certificate (see below).
How to Search Mariposa County Birth Records
Use the search bar at the top of any page to find Mariposa County birth records by first and last name. You can also search by parents' names to find siblings or children born to specific parents in Mariposa County.
About Mariposa County
Mariposa County is one of the original 27 California counties, created on February 18, 1850. It was originally the largest county ever created in the United States, covering roughly one-fifth of the entire state. Over time, portions were carved off to form or contribute to at least a dozen other counties including Fresno, Kern, Kings, Madera, Merced, Mono, and Tulare.
How to Get a Certified Mariposa County Birth Certificate
While CaliforniaBirthIndex.org provides free index information, you'll need a certified birth certificate for official purposes like passports, driver's licenses, or proving identity.
Mariposa County Assessor-Recorder
— Address: 4982 10th Street, Mariposa, CA 95338
— Phone: (209) 966-5719
— Hours: Monday-Friday, 8:00 AM - 5:00 PM
— Website: Assessor-Recorder
Fee: $31 per certified copy. Additional copies $31 each.
Ways to Order
In Person: Visit the Assessor-Recorder at 4982 10th Street, Mariposa, CA 95338. Monday-Friday, 8:00 AM - 5:00 PM. Most in-person requests are processed the same day or within a few business days.
By Mail: Send a completed application with payment (check or money order) to: Mariposa County Assessor-Recorder, P.O. Box 35, Mariposa, CA 95338. Allow 2-4 weeks for processing and delivery.
Through the State: You can also order from the California Department of Public Health (CDPH) for $31 per copy. See our guide: How to Get a Certified Birth Certificate.
Recent Births
The county recorder has birth records from 1850 to present.
Mariposa County Specifics
Mariposa County's original boundaries were so vast that many birth records from the 1850s-1860s attributed to "Mariposa" may actually correspond to locations now in other counties. The county seat's 1854 courthouse is the oldest continuously operating courthouse in California. John C. Fremont's Las Mariposas land grant makes early county records especially rich for Gold Rush-era genealogy.
Authorized vs. Informational Copies
Mariposa County issues two types of certified birth certificates:
— Authorized copy: Can be used to establish identity (for passports, driver's licenses, etc.). Only available to the person named on the certificate, their parents, legal guardians, or other authorized individuals.
— Informational copy: Marked "Informational, Not a Valid Document to Establish Identity." Available to anyone but cannot be used for identification purposes.
What If I Can't Find a Record?
If you can't find a Mariposa County birth record in our database, consider:
— Trying alternate name spellings or maiden names
— The birth may have occurred in a neighboring county
— Pre-1905 births are not included in the California Birth Index
— Contact the Mariposa County Assessor-Recorder directly at (209) 966-5719
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