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As of the 2010 United States Census, Monticello, located in the Prairie State, had a total population of 5,350 people.
From a total population of 5,350, Monticello has a median age of 42.2. The average age of males, in Monticello, is 42.1 while the average age of females is 42.2. When you compare this to median age of Illinois, Monticello is 5.2 years older.
The median income of individuals, in Monticello, is $34,815 while the average household income is $62,151. When comparing the median income of people living in Monticello to the rest of Illinois, the average income in Monticello is $4,796 more.