South st. paul is located in Dakota county Minnesota with a geographic area of 5.6 square miles. The total population in South st. paul is 20,132 with 48.7% male and 51.3% female. Children under age 5 represent 5.9% of the population, under age 18 equal 23.7% of the population and over age 65 is 13.9% of the population. The median household income is $63,204, per capita income is $30,273. There are a total of 8,258 housing units with 66.8% owner occupied. Education includes 26.8% of residents that are high school graduates and 27.5% with a bachelor's degree or higher. The average temperature in South st. paul in the summer is 68 degrees, and in the winter 9 degrees.