Monticello is located in White county Indiana with a geographic area of 3.5 square miles. The total population in Monticello is 5,255 with 47.0% male and 53.0% female. Children under age 5 represent 3.9% of the population, under age 18 equal 17.7% of the population and over age 65 is 29.3% of the population. The median household income is $42,565, per capita income is $24,634. There are a total of 2,497 housing units with 65.4% owner occupied. Education includes 49.9% of residents that are high school graduates and 9.7% with a bachelor's degree or higher. The average temperature in Monticello in the summer is 73 degrees, and in the winter 29 degrees.