Hornsby is located in Hardeman county Tennessee with a geographic area of 1.1 square miles. The total population in Hornsby is 422 with 50.5% male and 49.5% female. Children under age 5 represent 5.0% of the population, under age 18 equal 23.5% of the population and over age 65 is 17.8% of the population. The median household income is $40,096, per capita income is $21,293. There are a total of 182 housing units with 65.9% owner occupied. Education includes 40.7% of residents that are high school graduates and 13.7% with a bachelor's degree or higher. The average temperature in Hornsby in the summer is 77 degrees, and in the winter 38 degrees.
