Agency is located in Wapello county Iowa with a geographic area of 0.6 square miles. The total population in Agency is 625 with 42.9% male and 57.1% female. Children under age 5 represent 8.5% of the population, under age 18 equal 18.9% of the population and over age 65 is 19.5% of the population. The median household income is $52,143, per capita income is $28,217. There are a total of 276 housing units with 71.0% owner occupied. Education includes 38.0% of residents that are high school graduates and 15.9% with a bachelor's degree or higher. The average temperature in Agency in the summer is 74 degrees, and in the winter 23 degrees.