Rochester is located in Olmsted county Minnesota with a geographic area of 55.5 square miles. The total population in Rochester is 117,134 with 48.9% male and 51.1% female. Children under age 5 represent 7.2% of the population, under age 18 equal 24.1% of the population and over age 65 is 15.1% of the population. The median household income is $76,034, per capita income is $40,789. There are a total of 48,468 housing units with 67.1% owner occupied. Education includes 15.1% of residents that are high school graduates and 50.4% with a bachelor's degree or higher. The average temperature in Rochester in the summer is 68 degrees, and in the winter 9 degrees.