Tulare County is a county in the U.S. state of California. As of the 2010 census, the population was 442,179. Its county seat is Visalia. The county is named for Tulare Lake, once the largest freshwater lake west of the Great Lakes. Drained for agricultural development, the site is now in Kings County, which was created in 1893 from the western portion of the formerly larger Tulare County.
Tulare County comprises the Visalia-Porterville, CA Metropolitan Statistical Area. The county is located south of Fresno, spanning from the San Joaquin Valley east to the Sierra Nevada.
Sequoia National Park is located in the county, as are part of Kings Canyon National Park, in its northeast corner (shared with Fresno County), and part of Mount Whitney, on its eastern border (shared with Inyo County). As of the 2010 census, the population was 442,179, up from 368,021 at the 2000 census.
The land was occupied for thousands of years by varying cultures of indigenous peoples. Beginning in the eighteenth century, Spain established missions to colonize California and convert the American Indians to Christianity. Comandante Pedro Fages, while hunting for deserters in the Central Valley in 1772, discovered a great lake surrounded by marshes and filled with rushes; he named it Los Tules (the tules). It is from this lake that the county derives its name. The root of the name Tulare is found in the Nahuatl word tullin, designating cattail or similar reeds.