Riverdale is a village in Buffalo County, in the state of Nebraska, in the Midwestern United States. It is part of the Kearney, Nebraska Micropolitan Statistical Area. The population was 182 at the 2010 census.

Buffalo County is a county located in the U.S. state of Nebraska in the Midwestern United States. As of the 2020 United States Census, the population was 50,084, making it Nebraska's fifth-most populous county. Its county seat is Kearney. The county was created in 1855 and was organized in 1870. It was named after the once-prevalent bison herds of the Great Plains.