Riverdale is located in Prince george's county Maryland with a geographic area of square miles. The total population in Riverdale is 20,296 with 52.8% male and 47.2% female. Children under age 5 represent 7.4% of the population, under age 18 equal 27.1% of the population and over age 65 is 9.5% of the population. The median household income is $88,908, per capita income is $39,027. There are a total of 5,859 housing units with 54.1% owner occupied. Education includes 21.1% of residents that are high school graduates and 37.2% with a bachelor's degree or higher. The average temperature in Riverdale in the summer is 76 degrees, and in the winter 36 degrees.
