Colo is located in Story county Iowa with a geographic area of 1.1 square miles. The total population in Colo is 764 with 49.0% male and 51.0% female. Children under age 5 represent 4.6% of the population, under age 18 equal 24.3% of the population and over age 65 is 19.8% of the population. The median household income is $68,393, per capita income is $35,279. There are a total of 329 housing units with 80.5% owner occupied. Education includes 39.8% of residents that are high school graduates and 14.9% with a bachelor's degree or higher. The average temperature in Colo in the summer is 71 degrees, and in the winter 23 degrees.