Round lake beach is located in Lake county Illinois with a geographic area of 5.0 square miles. The total population in Round lake beach is 27,313 with 52.7% male and 47.3% female. Children under age 5 represent 6.7% of the population, under age 18 equal 28.1% of the population and over age 65 is 8.3% of the population. The median household income is $77,207, per capita income is $27,939. There are a total of 8,502 housing units with 76.4% owner occupied. Education includes 30.0% of residents that are high school graduates and 19.2% with a bachelor's degree or higher. The average temperature in Round lake beach in the summer is 74 degrees, and in the winter 27 degrees.
