Rancho Cucamonga, San Bernardino County, California, USA
Municipality
Location overview

Rancho Cucamonga is a city in western San Bernardino County, California, at the southern foothills of the San Gabriel Mountains. It is part of the Inland Empire, east of Los Angeles, with Upland to the west, Ontario to the south and Fontana to the east. The city incorporated in 1977, bringing together the historic communities of Alta Loma, Cucamonga and Etiwanda. Citrus growing and winemaking helped shape its early development, followed by residential growth, manufacturing, distribution and retail activity.