Riverside is a city in Riverside County, California, United States, and the county seat of the eponymous county. Named for its location beside the Santa Ana River, it is the largest city in the Riverside-San Bernardino-Ontario metropolitan area of Southern California, 4th largest inland California city after Fresno, Sacramento, and Bakersfield, and is located approximately east of Los Angeles. Riverside is the 61st most populous city in the United States and 12th most populous city in California. As of 2009, Riverside had an estimated population of 300,430. The city spans.Riverside was founded in the early 1870s and is the birthplace of the California citrus industry as well as home of the Mission Inn, the largest Mission Revival Style building in the United States. It is also home to the Riverside National Cemetery.

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