RIVERSIDE is a city in and the county seat of Riverside County, California, United States, in the Inland Empire metropolitan area. It is named for its location beside the Santa Ana River.

As of the 2020 census, it had a population of 314,998.
Riverside is the 61st-most-populous city in the United States and the 12th-most-populous city in California, and is about 50 miles southeast of downtown Los Angeles.

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Welcome to CityOfRiverside.us – The site for all businesses, information, and important places in the City of RIVERSIDE, California.