Ionia is located in Benton county Missouri with a geographic area of 0.1 square miles. The total population in Ionia is 75 with 56.0% male and 44.0% female. Children under age 5 represent 0.0% of the population, under age 18 equal 9.3% of the population and over age 65 is 38.7% of the population. The median household income is $23,173, per capita income is $24,724. There are a total of 39 housing units with 84.6% owner occupied. Education includes 28.2% of residents that are high school graduates and 5.1% with a bachelor's degree or higher. The average temperature in Ionia in the summer is 77 degrees, and in the winter 32 degrees.
