Godfrey is located in Madison county Illinois with a geographic area of 34.4 square miles. The total population in Godfrey is 17,540 with 49.2% male and 50.8% female. Children under age 5 represent 4.5% of the population, under age 18 equal 16.2% of the population and over age 65 is 27.6% of the population. The median household income is $73,041, per capita income is $39,991. There are a total of 7,713 housing units with 80.3% owner occupied. Education includes 20.5% of residents that are high school graduates and 33.8% with a bachelor's degree or higher. The average temperature in Godfrey in the summer is 74 degrees, and in the winter 27 degrees.