Walterboro is located in Colleton county South carolina with a geographic area of 6.8 square miles. The total population in Walterboro is 5,417 with 34.4% male and 65.6% female. Children under age 5 represent 7.9% of the population, under age 18 equal 24.4% of the population and over age 65 is 16.9% of the population. The median household income is $33,969, per capita income is $21,436. There are a total of 2,292 housing units with 56.5% owner occupied. Education includes 38.0% of residents that are high school graduates and 26.0% with a bachelor's degree or higher. The average temperature in Walterboro in the summer is 79 degrees, and in the winter 43 degrees.