Maryville is located in Nodaway county Missouri with a geographic area of 6.4 square miles. The total population in Maryville is 11,641 with 46.4% male and 53.6% female. Children under age 5 represent 4.2% of the population, under age 18 equal 12.0% of the population and over age 65 is 12.8% of the population. The median household income is $40,112, per capita income is $19,666. There are a total of 4,581 housing units with 42.1% owner occupied. Education includes 24.3% of residents that are high school graduates and 28.3% with a bachelor's degree or higher. The average temperature in Maryville in the summer is 73 degrees, and in the winter 32 degrees.