Why Walnut
Walnut is a suburban city spanning nearly nine square miles in the eastern San Gabriel Valley of Los Angeles County, California. Home to a population of 28,430 as of the 2020 census, the community is situated in a valley bounded by the steep San Jose Hills to the north and the gently sloping Puente Hills to the south. Local waterways, including Snow Creek and Lemon Creek, flow southward through the landscape toward the valley of San Jose Creek. Native California black walnut trees flourish along the northern hillsides, giving both natural character and a historic namesake to the area.
The region was originally inhabited by the Tongva people before Spanish missionaries established grazing ranches for sheep and cattle under the authority of the San Gabriel Mission. Following the secularization of mission lands in the 1830s, the Mexican government issued several local land grants, including Rancho San Jose, Rancho Los Nogales, and Rancho La Puente. These properties were primarily used to raise livestock and grow wheat, grapes, and citrus fruit. The local postal service was established under the name Lemon in 1895 before being renamed Walnut in 1908, and the town officially incorporated as a city in January 1959.
Today, Walnut is predominantly characterized by master-planned single-family residences alongside hundreds of commercial businesses. Educational institutions form a core part of the city, highlighted by Mt. San Antonio College as well as primary and secondary campuses managed by the Walnut Valley Unified School District and Rowland Unified School District. A reminder of the town's early history remains along Lemon Avenue, which continues to host the local United States Post Office. Public services and safety are provided through regional amenities, including a station operated by the Los Angeles County Sheriff's Department and County Fire Station 61.
Walnut is widely recognized for hosting major track and field events centered at Mt. San Antonio College. Held annually every April since 1959 at Hilmer Lodge Stadium, the Mt. SAC Relays attract elite athletic competitors from around the globe and have previously served as the site for events such as the 1968 Olympic Trials. Every October, the surrounding hillsides host the Mt. SAC Cross Country Invitational, a large-scale running competition that also accommodates regional high school championship meets.
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