Decatur is located in Benton county Arkansas with a geographic area of 4.5 square miles. The total population in Decatur is 1,536 with 54.1% male and 45.9% female. Children under age 5 represent 9.8% of the population, under age 18 equal 29.9% of the population and over age 65 is 7.9% of the population. The median household income is $41,786, per capita income is $17,439. There are a total of 536 housing units with 56.7% owner occupied. Education includes 42.0% of residents that are high school graduates and 17.5% with a bachelor's degree or higher. The average temperature in Decatur in the summer is 77 degrees, and in the winter 37 degrees.
