Humboldt is located in Gibson county Tennessee with a geographic area of 10.4 square miles. The total population in Humboldt is 8,145 with 45.4% male and 54.6% female. Children under age 5 represent 8.7% of the population, under age 18 equal 19.9% of the population and over age 65 is 26.5% of the population. The median household income is $31,995, per capita income is $21,223. There are a total of 3,616 housing units with 49.9% owner occupied. Education includes 36.0% of residents that are high school graduates and 17.0% with a bachelor's degree or higher. The average temperature in Humboldt in the summer is 76 degrees, and in the winter 38 degrees.