Woodstock is located in Mchenry county Illinois with a geographic area of 13.2 square miles. The total population in Woodstock is 25,391 with 48.8% male and 51.2% female. Children under age 5 represent 5.9% of the population, under age 18 equal 22.6% of the population and over age 65 is 15.0% of the population. The median household income is $69,470, per capita income is $33,528. There are a total of 9,706 housing units with 62.8% owner occupied. Education includes 27.0% of residents that are high school graduates and 29.7% with a bachelor's degree or higher. The average temperature in Woodstock in the summer is 71 degrees, and in the winter 27 degrees.