Porterville is a city in the San Joaquin Valley, in Tulare County, California, United States. Porterville's population was 54,165 at the 2010 census. The city's population grew dramatically as the city annexed many properties and unincorporated areas in and around Porterville. Not included in the city's population is East Porterville. The Census found another 6,767 residents there, giving the Porterville urban area a total of 60,932 residents. Porterville is considered part of the Census Bureau's designation of the Visalia-Porterville metropolitan statistical area.
From 1854 Peter Goodhue operated a stopping place on the Stockton - Los Angeles Road on the bank of the Tule River until the river changed its course in 1862. It was also the site of the Tule River Stage Station for the Butterfield Overland Mail, from 1858 to 1861. R. Porter Putnam, bought out Goodhue in 1860, turning the station into a popular stopping place and hotel called Porter Station. The town of Porterville was founded there in 1864.
Porterville is located at 36°4′7″N 119°1′39″W / 36.06861°N 119.0275°W / 36.06861; -119.0275 (36.068550, -119.027536).