Platteville is located in Grant county Wisconsin with a geographic area of 6.2 square miles. The total population in Platteville is 12,113 with 54.9% male and 45.1% female. Children under age 5 represent 3.1% of the population, under age 18 equal 12.4% of the population and over age 65 is 11.6% of the population. The median household income is $42,626, per capita income is $20,781. There are a total of 4,265 housing units with 44.8% owner occupied. Education includes 16.5% of residents that are high school graduates and 36.7% with a bachelor's degree or higher. The average temperature in Platteville in the summer is 70 degrees, and in the winter 17 degrees.