Dumont is located in Butler county Iowa with a geographic area of 1.7 square miles. The total population in Dumont is 586 with 45.7% male and 54.3% female. Children under age 5 represent 7.5% of the population, under age 18 equal 21.8% of the population and over age 65 is 32.8% of the population. The median household income is $41,742, per capita income is $23,285. There are a total of 266 housing units with 81.2% owner occupied. Education includes 47.7% of residents that are high school graduates and 11.3% with a bachelor's degree or higher. The average temperature in Dumont in the summer is 72 degrees, and in the winter 23 degrees.