About Sullivan
Sullivan is located in Moultrie county Illinois with a geographic area of 2.8 square miles. The total population in Sullivan is 4,450 with 45.8% male and 54.2% female. Children under age 5 represent 7.3% of the population, under age 18 equal 25.5% of the population and over age 65 is 18.4% of the population. The median household income is $56,351, per capita income is $27,382. There are a total of 1,859 housing units with 70.1% owner occupied. Education includes 32.4% of residents that are high school graduates and 26.6% with a bachelor's degree or higher. The average temperature in Sullivan in the summer is 75 degrees, and in the winter 27 degrees.