Calabasas is a city in Los Angeles County, California, United States, located in the hills west of the San Fernando Valley and in the northwest Santa Monica Mountains between Woodland Hills, Agoura Hills, West Hills, Hidden Hills, and Malibu, California. The Leonis Adobe, an adobe structure in Old Town Calabasas, dates from 1844 and is one of the oldest surviving buildings in greater Los Angeles. The city was formally incorporated in 1991. As of the 2010 census, the city's population was 23,058, up from 20,033 at the 2000 census.
It is generally accepted that the name of Calabasas is derived from the Spanish calabaza meaning "pumpkin", "squash", or "gourd" (cf. calabash). Some historians hold the theory that Calabasas is derived from the Chumash word calahoosa which is said to mean "where the wild geese fly." Owing to vast presence of wild squash plants in the area, the squash theory is more prevalent among local residents. At the top of the Calabasas grade, which is east of Las Virgenes Road on the original El Camino Real, legend has it that in 1824, a Basque rancher from Oxnard spilled a wagonload of pumpkins on the road en route to Los Angeles. The following spring, hundreds of pumpkin seeds sprouted alongside the road. The area was named Las Calabasas—the place where the pumpkins fell.
In honor of its namesake, the City of Calabasas and the Calabasas Chamber of Commerce hold an annual Pumpkin Festival in October, including carnivalgames, exhibits, demonstrations, and live entertainment. The festival has evolved from a small-town fair to a significant annual event. Though the current Pumpkin Festival is held at Juan Bautista de Anza Park in Calabasas, the original festival was believed to have taken place where the traveling wagon carrying pumpkins overturned and started the area's first pumpkin patch.
The city's official logo, depicting a red-tailed hawk flying over the Santa Monica Mountains, symbolizes a commitment to preserving the community's natural beauty and semirural quality of life. This logo is featured on the Calabasas city flag which is flown in front of City Hall and hangs in the City Council Chambers.