Columbia is located in Houston county Alabama with a geographic area of 3.9 square miles. The total population in Columbia is 832 with 48.7% male and 51.3% female. Children under age 5 represent 2.5% of the population, under age 18 equal 28.2% of the population and over age 65 is 23.6% of the population. The median household income is $51,563, per capita income is $26,070. There are a total of 341 housing units with 70.7% owner occupied. Education includes 41.6% of residents that are high school graduates and 18.2% with a bachelor's degree or higher. The average temperature in Columbia in the summer is 77 degrees, and in the winter 43 degrees.