Columbus is located in Stillwater county Montana with a geographic area of 1.4 square miles. The total population in Columbus is 1,964 with 49.0% male and 51.0% female. Children under age 5 represent 5.0% of the population, under age 18 equal 24.4% of the population and over age 65 is 20.7% of the population. The median household income is $55,438, per capita income is $30,179. There are a total of 815 housing units with 69.0% owner occupied. Education includes 39.8% of residents that are high school graduates and 25.9% with a bachelor's degree or higher. The average temperature in Columbus in the summer is 69 degrees, and in the winter 27 degrees.