Hiawatha is located in Brown county Kansas with a geographic area of 2.6 square miles. The total population in Hiawatha is 3,119 with 47.3% male and 52.7% female. Children under age 5 represent 5.9% of the population, under age 18 equal 21.8% of the population and over age 65 is 21.0% of the population. The median household income is $48,040, per capita income is $24,454. There are a total of 1,289 housing units with 64.2% owner occupied. Education includes 37.1% of residents that are high school graduates and 23.7% with a bachelor's degree or higher. The average temperature in Hiawatha in the summer is 78 degrees, and in the winter 32 degrees.