West columbia is located in Lexington county South carolina with a geographic area of 9.0 square miles. The total population in West columbia is 17,782 with 46.7% male and 53.3% female. Children under age 5 represent 5.8% of the population, under age 18 equal 16.6% of the population and over age 65 is 22.1% of the population. The median household income is $44,282, per capita income is $30,237. There are a total of 8,363 housing units with 57.9% owner occupied. Education includes 25.6% of residents that are high school graduates and 36.7% with a bachelor's degree or higher. The average temperature in West columbia in the summer is 80 degrees, and in the winter 43 degrees.