Known as the "Mother of Counties", Mariposa was established in 1850 and has derived its name from Mariposa Creek. Located in the western foothills of the Sierra Nevada, it has an area of approx 1463 sq mi. An overall populace of 18K with an amalgamation races including White, Asian, African American, Hispanic or Latino of any race, Native American, Pacific Islander and others with over 6K households and 4K families reside here. The county seat is in Mariposa.

The Mariposa County records archive enables to begin the vast and extensive online genealogical search just with the last and first name. Valuable information on origin and birth history, separation verdicts information, marriage, census and death news, civil war particulars, military service, immigration and naturalization details, civil court data, probates, property deeds, ancestral SSN and the likes thus enables one to gather necessary hints so as to make their research works a great success.