Glenwood is located in Mills county Iowa with a geographic area of 2.9 square miles. The total population in Glenwood is 5,325 with 49.4% male and 50.6% female. Children under age 5 represent 4.6% of the population, under age 18 equal 21.1% of the population and over age 65 is 20.9% of the population. The median household income is $63,852, per capita income is $30,727. There are a total of 1,928 housing units with 67.2% owner occupied. Education includes 28.5% of residents that are high school graduates and 26.6% with a bachelor's degree or higher. The average temperature in Glenwood in the summer is 74 degrees, and in the winter 23 degrees.