Porterville is a city in Tulare County, California, United States. The population was 39,615 at the 2000 census. City limit signs currently have the population at 51,467. The city's population grew dramatically as the city annexed many properties and unincorporated areas in and around Porterville. Porterville is considered part of the Census Bureau's designation of the Visalia-Porterville metropolitan statistical area.
According to the United States Census Bureau, the city has a total area of 14.1 square miles (36.4 km²), of which, 14.0 square miles (36.3 km²) of it is land and 0.1 square miles (0.2 km²) of it (0.50%) is water.
Porterville is located in the foothills of the Sierra Nevada mountains, and many of the town's inhabitants are intimately familiar with the upper regions of the hills. There is also a large man-made body of water, Lake Success, which finds much use for recreation and revelry when in season.
As of the census of 2000, there were 39,615 people, 11,884 households, and 9,174 families residing in the city. The population density was 2,828.4 people per square mile (1,091.8/km²). There were 12,691 housing units at an average density of 906.1/sq mi (349.8/km²). The racial makeup of the city was 49.75% White, 1.28% African American, 1.73% Native American, 4.63% Asian, 0.15% Pacific Islander, 32.71% from other races, and 4.75% from two or more races. Hispanic or Latino of any race were 54.45% of the population.
There were 11,884 households out of which 47.5% had children under the age of 18 living with them, 53.1% were married couples living together, 17.7% had a female householder with no husband present, and 22.8% were non-families. 19.1% of all households were made up of individuals and 8.3% had someone living alone who was 65 years of age or older. The average household size was 3.20 and the average family size was 3.62.
In the city the population was spread out with 34.3% under the age of 18, 10.8% from 18 to 24, 28.0% from 25 to 44, 17.5% from 45 to 64, and 9.4% who were 65 years of age or older. The median age was 29 years. For every 100 females there were 96.4 males. For every 100 females age 18 and over, there were 93.0 males.
The median income for a household in the city was $32,046, and the median income for a family was $35,136. Males had a median income of $31,171 versus $23,737 for females. The per capita income for the city was $12,745. About 20.3% of families and 25.7% of the population were below the poverty line, including 33.7% of those under age 18 and 6.4% of those age 65 or over.
In the state legislature Porterville is located in the 18th Senate District, represented by Republican Roy Ashburn, and in the 34th Assembly District, represented by Republican Bill Maze. Federally, Porterville is located in California's 21st congressional district, which has a Cook PVI of R +13 and is represented by Republican Devin Nunes.