Riverside is a city in Montgomery County, Ohio, United States.

[5] In 1994, Riverside merged with the surrounding Mad River Township.

This merger resulted in the creation of several separated sections of the city in parts of the township that had experienced annexations by Dayton, Huber Heights, and Wright-Patterson Air Force Base.

The city is adjacent to Dayton, Kettering, Huber Heights, Wright-Patterson and a small section of Harrison Township in Montgomery County.

There were 11,304 housing units at an average density of 1,163.0 per square mile (449.0/km2).

28.9% of all households were made up of individuals, and 10.6% had someone living alone who was 65 years of age or older.

27.9% of all households were made up of individuals, and 10.1% had someone living alone who was 65 years of age or older.