Garnett is located in Anderson county Kansas with a geographic area of 3.1 square miles. The total population in Garnett is 3,245 with 49.9% male and 50.1% female. Children under age 5 represent 6.5% of the population, under age 18 equal 23.5% of the population and over age 65 is 27.4% of the population. The median household income is $48,259, per capita income is $23,689. There are a total of 1,451 housing units with 63.5% owner occupied. Education includes 36.2% of residents that are high school graduates and 25.5% with a bachelor's degree or higher. The average temperature in Garnett in the summer is 78 degrees, and in the winter 32 degrees.