Riverside is located in Greene county Ohio with a geographic area of 9.7 square miles. The total population in Riverside is 25,127 with 49.2% male and 50.8% female. Children under age 5 represent 8.5% of the population, under age 18 equal 22.8% of the population and over age 65 is 16.6% of the population. The median household income is $48,486, per capita income is $27,177. There are a total of 11,180 housing units with 57.8% owner occupied. Education includes 27.1% of residents that are high school graduates and 24.4% with a bachelor's degree or higher. The average temperature in Riverside in the summer is 73 degrees, and in the winter 32 degrees.