Calhoun is located in Henry county Missouri with a geographic area of 1.0 square miles. The total population in Calhoun is 324 with 49.4% male and 50.6% female. Children under age 5 represent 5.2% of the population, under age 18 equal 20.1% of the population and over age 65 is 24.4% of the population. The median household income is $29,141, per capita income is $16,862. There are a total of 147 housing units with 80.3% owner occupied. Education includes 51.0% of residents that are high school graduates and 6.1% with a bachelor's degree or higher. The average temperature in Calhoun in the summer is 76 degrees, and in the winter 32 degrees.