Marshalltown is located in Marshall county Iowa with a geographic area of 19.2 square miles. The total population in Marshalltown is 26,957 with 50.1% male and 49.9% female. Children under age 5 represent 7.4% of the population, under age 18 equal 26.3% of the population and over age 65 is 17.9% of the population. The median household income is $54,778, per capita income is $24,920. There are a total of 9,980 housing units with 66.2% owner occupied. Education includes 31.0% of residents that are high school graduates and 23.7% with a bachelor's degree or higher. The average temperature in Marshalltown in the summer is 72 degrees, and in the winter 23 degrees.
