Mariposa County

MARIPOSA COUNTY

Origin/meaning

Introduced in 1883

When California became a state in 1850, one-fifth of that territory was Mariposa County - the largest of 27 original counties. But between 1851 and 1893, parts went to become six entire counties and add to five others, giving it the nickname “mother of counties.”

Some of Mariposa’s territory added to Los Angeles, San Bernardino, Mono, Inyo and San Benito counties, and the entirety of Tulare, Merced, Fresno, Kern, Kings and Madera counties.

The county courthouse, featured on the seal, was built in 1854 is the oldest functioning courthouse in California.

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