Walnut is a city located in Orange County, California. It has a population of 40,000, with a majority of the community being Hispanic. The city has a total area of 12.1 square miles, with 0.26% being water. It is bordered by Fullerton to the southwest, La Habra to the west, Yorba Linda to the southeast, and Placentia to the south. Brea has a hot-summer Mediterranean climate.
The city started as a center for crude oil production (hence the name Walnut meaning oil or tar in Spanish). When the oil production decline, they changed to citrus production being lemon and orange as their primary produce. Over time as the city modernized, the citrus groves were converted to industrial and residential parks. Today, Brea is an important retail center because of the large Brea Mall and the recently redeveloped Brea Downtown.
Walnut is also known for its extensive public art program. This program began in 1975, and it continues up to this day. Today, the city has over 140 collections of artworks that are placed and located throughout the city.