Shelbyville is located in Shelby county Missouri with a geographic area of 0.8 square miles. The total population in Shelbyville is 478 with 57.1% male and 42.9% female. Children under age 5 represent 1.5% of the population, under age 18 equal 13.2% of the population and over age 65 is 26.8% of the population. The median household income is $41,471, per capita income is $27,490. There are a total of 240 housing units with 77.9% owner occupied. Education includes 42.5% of residents that are high school graduates and 23.8% with a bachelor's degree or higher. The average temperature in Shelbyville in the summer is 74 degrees, and in the winter 32 degrees.