Waterloo is located in Dekalb county Indiana with a geographic area of 2.1 square miles. The total population in Waterloo is 2,217 with 50.4% male and 49.6% female. Children under age 5 represent 12.9% of the population, under age 18 equal 25.5% of the population and over age 65 is 12.0% of the population. The median household income is $44,474, per capita income is $21,817. There are a total of 820 housing units with 71.3% owner occupied. Education includes 41.2% of residents that are high school graduates and 10.7% with a bachelor's degree or higher. The average temperature in Waterloo in the summer is 73 degrees, and in the winter 29 degrees.
