Walnut is a city in Los Angeles County, California, United States. The population is 30,004 and its current mayor is Joaquin Lim.
With exceptions to some busy intersections (such as near Mt. San Antonio College), the hilly and affluent city is considerably more relaxed in comparison to most nearby neighborhoods. The city is almost and is home to more than 32,000 people and 600 businesses. A large Sysco headquarters is located in the city.
Spaniards who arrived here in the early 1800s introduced the concept of ranchos and started agricultural development and the creation of home sites. The first land grants in the Walnut area were those of the Rancho De San Jose granted to Don Ricardo Vejar and Don Ygnacio Palomares; the Rancho De Los Nogales, issued to Jose De La Cruz Linares; and Rancho La Puente, issued to John Rowland and William Workman in 1842 which consisted of a total of . The City of Walnut was included as part of one of the 24 ranchos belonging to the San Gabriel Mission
In 1868, John Rowland and William Workman divided Rancho La Puente, leaving Rowland the eastern half and Workman the western half. Rowland’s land included the western portion of Walnut. The land was used for raising cattle and growing wheat, grapes, and fruit trees.
Many years earlier in 1840, Mexican Governor Juan Alvardo awarded a man named Jose De La Cruz Linares a land grant of , land which included a portion of Walnut. This land was known as Rancho De Nogales, or Ranch of the Walnut Trees. In 1847, seven years after the unfortunate death of Linares, the rancho was acquired by Ricardo Vejar. This land included the eastern portion of Walnut and became part of Rancho San Jose. The City of Walnut originally obtained its name from the Rancho De Los Nogales land grant, Nogales being the Spanish word for walnut.
In order to preserve part of the community’s history, the City of Walnut’s Bicentennial Commission selected the construction of Lemon Creek Park and the restoration of the William R. Rowland Adobe Redwood Ranch House as Walnut’s bicentennial project. In 1871, the Lemon Creek Park area became the property of Sheriff William Rowland, who inherited the ranch from his father, John Rowland. The modest structure served as the home of Mr. Meridith, ranch foreman for William Rowland. It was built in 1883. The adobe redwood ranch house is one of the few remaining original ranch style redwood and adobe structures in the area. On October 1, 1975, the State Landmark Committee placed the W.R. Rowland ranch house in the National Registry of Historical Places.
Walnut was one of the only cities to have Black Walnuts able to be picked.
On July 29, 2008, a 5.4 earthquake shook the eastern portion of the LA basin, with a strong shaking felt in Walnut.
There were 8,260 households out of which 50.6% had children under the age of 18 living with them, 77.1% were married couples living together, 9.9% had a female householder with no husband present, and 8.2% were non-families. 5.8% of all households were made up of individuals and 1.3% had someone living alone who was 65 years of age or older. The average household size was 3.63 and the average family size was 3.74.
In the city the population was spread out with 27.8% under the age of 18, 9.8% from 18 to 24, 27.2% from 25 to 44, 28.4% from 45 to 64, and 6.9% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 96.7 males. For every 100 females age 18 and over, there were 93.5 males.
The median income for a household in the city was $97,367, and the median income for a family was $106,996. Males had a median income of $51,944 versus $36,197 for females. The per capita income for the city was $31,196. About 5.8% of families and 6.5% of the population were below the poverty line, including 7.8% of those under age 18 and 6.3% of those age 65 or over.
Portions of the western side of Walnut is also served by the Rowland Unified School District.
In addition, Mt. San Antonio College, one of the California Community Colleges, is also located in Walnut near its border with Pomona.