Laddonia is located in Audrain county Missouri with a geographic area of 0.7 square miles. The total population in Laddonia is 579 with 41.1% male and 58.9% female. Children under age 5 represent 16.6% of the population, under age 18 equal 25.6% of the population and over age 65 is 17.6% of the population. The median household income is $41,964, per capita income is $19,465. There are a total of 233 housing units with 72.5% owner occupied. Education includes 49.8% of residents that are high school graduates and 9.0% with a bachelor's degree or higher. The average temperature in Laddonia in the summer is 77 degrees, and in the winter 32 degrees.