Clinton is located in Henry county Missouri with a geographic area of 9.2 square miles. The total population in Clinton is 8,792 with 47.3% male and 52.7% female. Children under age 5 represent 5.9% of the population, under age 18 equal 24.1% of the population and over age 65 is 20.0% of the population. The median household income is $39,883, per capita income is $23,406. There are a total of 3,720 housing units with 58.7% owner occupied. Education includes 36.5% of residents that are high school graduates and 20.1% with a bachelor's degree or higher. The average temperature in Clinton in the summer is 76 degrees, and in the winter 32 degrees.