Columbia is located in Maury county Tennessee with a geographic area of 33.1 square miles. The total population in Columbia is 39,515 with 47.1% male and 52.9% female. Children under age 5 represent 7.3% of the population, under age 18 equal 25.5% of the population and over age 65 is 14.7% of the population. The median household income is $50,378, per capita income is $25,266. There are a total of 15,144 housing units with 61.7% owner occupied. Education includes 31.8% of residents that are high school graduates and 22.0% with a bachelor's degree or higher. The average temperature in Columbia in the summer is 75 degrees, and in the winter 38 degrees.
