Decatur is located in Burt county Nebraska with a geographic area of 1.0 square miles. The total population in Decatur is 402 with 50.0% male and 50.0% female. Children under age 5 represent 1.2% of the population, under age 18 equal 6.7% of the population and over age 65 is 40.8% of the population. The median household income is $43,472, per capita income is $33,370. There are a total of 227 housing units with 76.7% owner occupied. Education includes 38.8% of residents that are high school graduates and 13.2% with a bachelor's degree or higher. The average temperature in Decatur in the summer is 72 degrees, and in the winter 26 degrees.