Stillman valley is located in Ogle county Illinois with a geographic area of 0.6 square miles. The total population in Stillman valley is 1,348 with 44.0% male and 56.0% female. Children under age 5 represent 8.2% of the population, under age 18 equal 30.9% of the population and over age 65 is 15.0% of the population. The median household income is $68,958, per capita income is $27,400. There are a total of 473 housing units with 81.0% owner occupied. Education includes 24.9% of residents that are high school graduates and 27.5% with a bachelor's degree or higher. The average temperature in Stillman valley in the summer is 74 degrees, and in the winter 27 degrees.
