Sioux falls is located in Lincoln county South dakota with a geographic area of 79.1 square miles. The total population in Sioux falls is 180,927 with 49.9% male and 50.1% female. Children under age 5 represent 7.6% of the population, under age 18 equal 25.0% of the population and over age 65 is 12.9% of the population. The median household income is $61,738, per capita income is $33,276. There are a total of 73,818 housing units with 59.5% owner occupied. Education includes 24.1% of residents that are high school graduates and 37.1% with a bachelor's degree or higher. The average temperature in Sioux falls in the summer is 70 degrees, and in the winter 15 degrees.