Riverwoods is located in Lake county Illinois with a geographic area of 4.0 square miles. The total population in Riverwoods is 3,536 with 50.4% male and 49.6% female. Children under age 5 represent 3.2% of the population, under age 18 equal 21.2% of the population and over age 65 is 30.2% of the population. The median household income is $231,477, per capita income is $93,770. There are a total of 1,250 housing units with 95.1% owner occupied. Education includes 4.6% of residents that are high school graduates and 83.6% with a bachelor's degree or higher. The average temperature in Riverwoods in the summer is 74 degrees, and in the winter 27 degrees.