Monticello is located in Carver county Minnesota with a geographic area of 8.9 square miles. The total population in Monticello is 13,700 with 48.1% male and 51.9% female. Children under age 5 represent 8.3% of the population, under age 18 equal 26.7% of the population and over age 65 is 10.8% of the population. The median household income is $71,399, per capita income is $28,219. There are a total of 5,083 housing units with 72.5% owner occupied. Education includes 34.6% of residents that are high school graduates and 23.8% with a bachelor's degree or higher. The average temperature in Monticello in the summer is 69 degrees, and in the winter 9 degrees.