Green valley is located in Tazewell county Illinois with a geographic area of 0.3 square miles. The total population in Green valley is 716 with 52.5% male and 47.5% female. Children under age 5 represent 9.2% of the population, under age 18 equal 33.7% of the population and over age 65 is 9.8% of the population. The median household income is $53,438, per capita income is $24,532. There are a total of 274 housing units with 70.4% owner occupied. Education includes 46.7% of residents that are high school graduates and 12.0% with a bachelor's degree or higher. The average temperature in Green valley in the summer is 74 degrees, and in the winter 27 degrees.