Middletown is located in Des moines county Iowa with a geographic area of 0.5 square miles. The total population in Middletown is 447 with 44.5% male and 55.5% female. Children under age 5 represent 8.5% of the population, under age 18 equal 33.6% of the population and over age 65 is 14.3% of the population. The median household income is $66,667, per capita income is $24,030. There are a total of 148 housing units with 77.0% owner occupied. Education includes 37.8% of residents that are high school graduates and 30.4% with a bachelor's degree or higher. The average temperature in Middletown in the summer is 74 degrees, and in the winter 23 degrees.
