Aberdeen is located in Brown county South dakota with a geographic area of 16.5 square miles. The total population in Aberdeen is 28,315 with 48.9% male and 51.1% female. Children under age 5 represent 6.2% of the population, under age 18 equal 22.0% of the population and over age 65 is 17.6% of the population. The median household income is $56,455, per capita income is $31,992. There are a total of 12,187 housing units with 57.6% owner occupied. Education includes 29.8% of residents that are high school graduates and 31.2% with a bachelor's degree or higher. The average temperature in Aberdeen in the summer is 70 degrees, and in the winter 15 degrees.