Irwindale is a city in the San Gabriel Valley, in Los Angeles County, California. The population was 1,472 at the 2020 census, 1,422 at the 2010 census. The ZIP Codes serving the area are 91010, which is shared with Duarte, 91702, which is shared with Azusa, and 91706, which is shared with Baldwin Park.
Gravel pits in and near the city supplied most of the rock and sand to build the highways of nearby Los Angeles. Huy Fong sriracha, a popular hot sauce, is made in the city. Since 2005, the city has hosted the annual Renaissance Pleasure Faire of Southern California.
Most housing is in the southeastern portion of the city, near Arrow Highway and north of Cypress Street near Irwindale Avenue. There is also an isolated tract of housing on the southeastern corner of Meridian Street in the northwestern portion of the city.
History
Irwindale was part of the Mexican land grants by Alta California Governor Juan Alvarado of Rancho La Puente, Rancho Azusa de Dalton, Rancho Azusa de Duarte, and Rancho San Francisquito. The families of Gregorio Fraijo and Facundo Ayon settled here in the 1850s. Significant economic growth did not arrive until the advent of the automobile, which drove up demand for the area's rocks and sand for the paving of roads. The city was incorporated on August 6, 1957.
Irwindale took advantage of urban redevelopment laws starting in 1976, and prospered in the following decade; it attracted a Miller Brewing Company plant, the corporate headquarters of Home Savings of America, and other companies.
In the summer of 1987, city councilman Joe Breceda approached Al Davis, owner of the National Football League's Los Angeles Raiders, about building a new stadium on the site of one of the disused pits. Davis agreed to a $115 million deal. He would take ownership of the new stadium provided the Raiders would play there for 19 years. The deal included a $10 million nonrefundable signing bonus paid directly to Davis regardless of whether the plan would be executed. In the event, both parties were served multiple lawsuits, the U.S. Army Corps of Engineers demanded strict environmental impact assessments, and the Los Angeles County Board of Supervisors demurred, and the project was canceled. Davis pocketed the $10 million, and eventually moved the Raiders back to Oakland.
Geography
According to the United States Census Bureau, the city has a total area of . of it is land and of it (8.19%) is water. Groundwater contamination was first found through well sampling in 1979. Contaminants include high levels of volatile organic compounds such as perchloroethylene (PCE) and trichloroethene (TCE), perchlorate, 1,4-dioxane, and N-nitrosodimethylamine (NDMA). More than 100 facilities are identified as contributors to this contamination in Irwindale, mainly through improper disposal and handling of chemicals over the years.