Willoughby is located in Lake county Ohio with a geographic area of 10.2 square miles. The total population in Willoughby is 22,904 with 44.7% male and 55.3% female. Children under age 5 represent 4.5% of the population, under age 18 equal 18.1% of the population and over age 65 is 21.9% of the population. The median household income is $60,311, per capita income is $35,969. There are a total of 10,882 housing units with 60.7% owner occupied. Education includes 26.1% of residents that are high school graduates and 32.7% with a bachelor's degree or higher. The average temperature in Willoughby in the summer is 71 degrees, and in the winter 32 degrees.
