Jonesboro is located in Union county Illinois with a geographic area of 2.7 square miles. The total population in Jonesboro is 1,772 with 49.0% male and 51.0% female. Children under age 5 represent 6.2% of the population, under age 18 equal 24.3% of the population and over age 65 is 21.2% of the population. The median household income is $37,355, per capita income is $24,126. There are a total of 741 housing units with 77.1% owner occupied. Education includes 28.6% of residents that are high school graduates and 24.8% with a bachelor's degree or higher. The average temperature in Jonesboro in the summer is 76 degrees, and in the winter 27 degrees.
