Lumberton is located in Hardin county Texas with a geographic area of 13.4 square miles. The total population in Lumberton is 12,939 with 48.4% male and 51.6% female. Children under age 5 represent 6.3% of the population, under age 18 equal 25.2% of the population and over age 65 is 20.5% of the population. The median household income is $83,167, per capita income is $37,212. There are a total of 4,920 housing units with 84.7% owner occupied. Education includes 31.1% of residents that are high school graduates and 25.6% with a bachelor's degree or higher. The average temperature in Lumberton in the summer is 83 degrees, and in the winter 49 degrees.