Riverside is an affluent, suburban village in Cook County, Illinois, United States. A significant portion of the village is in the Riverside Landscape Architecture District, designated a National Historic Landmark in 1970.The population of the village was 8,875 at the 2010 census.
Riverside is arguably the first planned community in the United States, designed in 1869 by Calvert Vaux and Frederick Law Olmsted. The village was incorporated in 1875. The Riverside Landscape Architecture District, an area bounded by 26th Street, Harlem and Ogden avenues, the Des Plaines River, and Golf Road, was designated a National Historic Landmark in 1970.In 1863 the Chicago, Burlington and Quincy Railroad was built heading southwest from downtown Chicago to Quincy, Illinois, passing through what is now the Near West Suburban area of Chicago in a western-southwestern direction. This new access to transportation and commerce brought about a significant housing and construction boom in what was once farmland far from the bustle of the city of Chicago.Riverside has become an architectural museum, which is recognized by the village's National Historic Landmark designation. The village housing stock varies from well-maintained 1920s bungalows and huge Victorian and early-twentieth-century mansions that attract architectural tours led by The Frederick Law Olmsted Society of Riverside.