Fort atkinson is located in Jefferson county Wisconsin with a geographic area of 5.7 square miles. The total population in Fort atkinson is 12,455 with 47.9% male and 52.1% female. Children under age 5 represent 4.5% of the population, under age 18 equal 21.3% of the population and over age 65 is 18.7% of the population. The median household income is $63,535, per capita income is $31,493. There are a total of 5,092 housing units with 66.9% owner occupied. Education includes 32.0% of residents that are high school graduates and 24.4% with a bachelor's degree or higher. The average temperature in Fort atkinson in the summer is 70 degrees, and in the winter 17 degrees.