Fort calhoun is located in Washington county Nebraska with a geographic area of 0.7 square miles. The total population in Fort calhoun is 983 with 49.9% male and 50.1% female. Children under age 5 represent 4.3% of the population, under age 18 equal 21.1% of the population and over age 65 is 24.7% of the population. The median household income is $68,750, per capita income is $33,798. There are a total of 398 housing units with 57.3% owner occupied. Education includes 41.7% of residents that are high school graduates and 17.1% with a bachelor's degree or higher. The average temperature in Fort calhoun in the summer is 74 degrees, and in the winter 26 degrees.