Denison is located in Crawford county Iowa with a geographic area of 6.5 square miles. The total population in Denison is 8,319 with 48.7% male and 51.3% female. Children under age 5 represent 6.4% of the population, under age 18 equal 25.0% of the population and over age 65 is 12.1% of the population. The median household income is $53,808, per capita income is $29,801. There are a total of 2,862 housing units with 58.8% owner occupied. Education includes 38.0% of residents that are high school graduates and 13.6% with a bachelor's degree or higher. The average temperature in Denison in the summer is 72 degrees, and in the winter 23 degrees.
