Poplar grove is located in Boone county Illinois with a geographic area of 7.7 square miles. The total population in Poplar grove is 4,497 with 46.9% male and 53.1% female. Children under age 5 represent 10.5% of the population, under age 18 equal 32.4% of the population and over age 65 is 7.5% of the population. The median household income is $74,896, per capita income is $38,756. There are a total of 1,501 housing units with 87.7% owner occupied. Education includes 22.5% of residents that are high school graduates and 32.0% with a bachelor's degree or higher. The average temperature in Poplar grove in the summer is 74 degrees, and in the winter 27 degrees.
