Erwin is located in Unicoi county Tennessee with a geographic area of 4.1 square miles. The total population in Erwin is 5,910 with 47.8% male and 52.2% female. Children under age 5 represent 2.5% of the population, under age 18 equal 16.8% of the population and over age 65 is 23.8% of the population. The median household income is $35,731, per capita income is $21,656. There are a total of 2,631 housing units with 69.1% owner occupied. Education includes 29.6% of residents that are high school graduates and 18.5% with a bachelor's degree or higher. The average temperature in Erwin in the summer is 77 degrees, and in the winter 38 degrees.
