Rancho Cucamonga is located just south of the foothills of the San Gabriel Mountains in San Bernardino County, California. About 37 miles east of Downtown Los Angeles, Rancho Cucamonga is the 26th most populous city in California. The city's seal, which centers on a cluster of grapes, alludes to the city's agricultural history including wine-making.
Rancho Cucamonga was the epicenter of winemaking in Southern California in the early 20th century. Rancho Cucamonga is currently home to the Joseph Filippi Winery, the Rancho De Philo Winery, and the Pierre Biane Winery.
Like other communities in the Pomona Valley, Rancho Cucamonga experienced exponential growth in the decades following World War II. By the 1970s, Rancho Cucamonga had transitioned from an agricultural center to a suburb of over 44,000 people. The city was incorporated in 1977.
The city's proximity to major transportation hubs, airports, and highways has attracted the business of several large corporations, including Coca-Cola, Frito-Lay, Big Lots, Mercury Insurance Group, and Southern California Edison.