Lebanon is located in St. clair county Illinois with a geographic area of 2.7 square miles. The total population in Lebanon is 4,443 with 47.7% male and 52.3% female. Children under age 5 represent 1.5% of the population, under age 18 equal 16.2% of the population and over age 65 is 15.6% of the population. The median household income is $61,298, per capita income is $27,592. There are a total of 1,634 housing units with 58.1% owner occupied. Education includes 16.6% of residents that are high school graduates and 41.5% with a bachelor's degree or higher. The average temperature in Lebanon in the summer is 76 degrees, and in the winter 27 degrees.
