Winfield is located in Henry county Iowa with a geographic area of 1.0 square miles. The total population in Winfield is 1,035 with 47.3% male and 52.7% female. Children under age 5 represent 5.4% of the population, under age 18 equal 27.4% of the population and over age 65 is 22.6% of the population. The median household income is $36,887, per capita income is $23,873. There are a total of 463 housing units with 73.0% owner occupied. Education includes 24.2% of residents that are high school graduates and 19.2% with a bachelor's degree or higher. The average temperature in Winfield in the summer is 73 degrees, and in the winter 23 degrees.
