Spring Valley is an unincorporated community in San Diego County, California, United States. The community includes the neighborhood of La Presa and part of the neighborhood of Casa de Oro (which extends into unincorporated La Mesa). The United States Census Bureau has divided Spring Valley into two census-designated places (CDPs), Spring Valley and La Presa. The population of Spring Valley was 59,384 at the 2000 census. This figure combines the population of the Spring Valley CDP (26,633) and the La Presa CDP (32,721). There are claims that the Greater Spring Valley area has over 100,000 residents although this claims large areas that are actually unincorporated parts of La Mesa and El Cajon.
Spring Valley is served by the 91977 and 91978 ZIP codes.
Spring Valley is named for the natural spring located there. It was long the home of the Kumeyaay tribe, who called it Neti or Meti. Spanish conquerors drove off the natives and used the area for cattle, calling it El aguaje de San Jorge (St. George's Spring).
In 1863 Judge Augustus S. Ensworth of San Diego filed a claim for a 160 acre (647,000 m²) ranch that included the spring. The ranch, and the small adobe house he built there, were sold to Rufus King Porter and later to historian Hubert Howe Bancroft. The adobe is now a National Historic Landmark.
The United States Geological Survey (USGS) places Spring Valley at (32.7447740, -116.9989160). This is near the intersection of Kenwood Drive and Helix Street. Most maps place Spring Valley at this location.
The United States Census Bureau places Spring Valley at (32.734318, -116.981372), which is approximately two miles southeast of where the USGS places it. According to the United States Census Bureau, the CDP has a total area of 19.3 km² (7.4 mi²). 18.7 km² (7.2 mi²) of it is land and 0.5 km² (0.2 mi²) of it (2.82%) is water.
The United States Census Bureau has split Spring Valley into two Census-Designated Places (CDPs). The statistics below cover only the Spring Valley CDP. For the demographics of the complete community of Spring Valley also see La Presa, California.
As of the census of 2000, there were 26,663 people, 9,129 households, and 6,901 families residing in the CDP. The population density was 1,423.9/km² (3,685.4/mi²). There were 9,291 housing units at an average density of 496.2/km² (1,284.2/mi²). The racial makeup of the CDP was 68.08% White, 10.24% African American, 0.77% Native American, 4.79% Asian, 0.52% Pacific Islander, 9.45% from other races, and 6.15% from two or more races. Hispanic or Latino of any race were 21.48% of the population.
There were 9,129 households out of which 40.5% had children under the age of 18 living with them, 54.8% were married couples living together, 15.6% had a female householder with no husband present, and 24.4% were non-families. 17.5% of all households were made up of individuals and 6.0% had someone living alone who was 65 years of age or older. The average household size was 2.90 and the average family size was 3.27.
In the CDP the population was spread out with 29.1% under the age of 18, 9.1% from 18 to 24, 31.4% from 25 to 44, 20.9% from 45 to 64, and 9.5% who were 65 years of age or older. The median age was 33 years. For every 100 females there were 94.8 males. For every 100 females age 18 and over, there were 91.6 males.
The median income for a household in the CDP was $48,271, and the median income for a family was $51,217. Males had a median income of $36,338 versus $30,297 for females. The per capita income for the CDP was $19,504. About 6.5% of families and 8.6% of the population were below the poverty line, including 11.3% of those under age 18 and 3.2% of those age 65 or over.
In the state legislature Spring Valley is located in the 36th and 39th Senate District, represented by Republican Dennis Hollingsworth and Democrat Christine Kehoe, and in the 77th and 78th Assembly District, represented by Republican Joel Anderson and Democrat Marty Block respectively. Federally, Spring Valley is located in California's 52nd congressional district, which has a Cook PVI of R +9 and is represented by Republican Duncan Hunter.