Riverside is a neighborhood/section in the town of Greenwich in Fairfield County, Connecticut, United States. As of the 2010 census, it had a population of 8,416.
The town of Greenwich is one political and taxing body, but consists of several distinct sections or neighborhoods, such as Banksville, Byram, Cos Cob, Glenville, Mianus, Old Greenwich, Riverside, and Greenwich (sometimes referred to as central, or downtown, Greenwich). Of these neighborhoods, three (Cos Cob, Old Greenwich, and Riverside) have separate postal names and ZIP codes.
St. Paul's Episcopal Church, at 200 Riverside Avenue in Riverside, has held its "Fair for All" since 1942. Money raised goes directly to local charities.
Riverside has two sites listed on the National Register of Historic Places:
According to the U.S. Census Bureau, Riverside has a total area of 3.23 mi2 (8.36 km2), of which 2.42 mi2 (6.27 km2) is land and 0.81 mi2 (2.09 km2), or 24.98%, is water.
The neighborhood is served by the Riverside Railroad Station on the Metro-North line, although some residents are closer to the Old Greenwich Train Station.
Interstate 95 cuts through the neighborhood.
Well-known residents of Riverside include Lara Spencer, television journalist, and Lois Darling, an author, illustrator and researcher. Gold Medal ice skater Dorothy Hamill and Columbus Blue Jackets forward Cam Atkinson also grew up in Riverside. Riverside is also home to Kathie Lee Gifford.