Flatonia is located in Fayette county Texas with a geographic area of 1.7 square miles. The total population in Flatonia is 1,800 with 62.9% male and 37.1% female. Children under age 5 represent 1.7% of the population, under age 18 equal 24.8% of the population and over age 65 is 17.3% of the population. The median household income is $62,614, per capita income is $25,607. There are a total of 496 housing units with 83.9% owner occupied. Education includes 33.7% of residents that are high school graduates and 14.5% with a bachelor's degree or higher. The average temperature in Flatonia in the summer is 83 degrees, and in the winter 49 degrees.