Defiance is located in Shelby county Iowa with a geographic area of 0.4 square miles. The total population in Defiance is 216 with 56.5% male and 43.5% female. Children under age 5 represent 0.9% of the population, under age 18 equal 22.7% of the population and over age 65 is 26.4% of the population. The median household income is $41,328, per capita income is $22,863. There are a total of 109 housing units with 85.3% owner occupied. Education includes 45.0% of residents that are high school graduates and 8.3% with a bachelor's degree or higher. The average temperature in Defiance in the summer is 72 degrees, and in the winter 23 degrees.
