RANCHO CUCAMONGA is a city located just south of the foothills of the San Gabriel Mountains and Angeles National Forest in San Bernardino County, California.

About 37 mi east of Downtown Los Angeles, Rancho Cucamonga is the 28th most populous city in California.
The city had a population of 174,453 according to the 2020 United States census.
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, Southern California Edison, and Amphastar Pharmaceuticals.

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Welcome to RanchoCucamonga.City – The site for all businesses, information, and important places in the City of RANCHO CUCAMONGA, California.

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RanchoCucamonga.City is bordered by Upland.City to its west, Ontario.City to its south, the San Gabriel Mountains to its north and I-15 and Fontana.City to its east.