From a total population of 3,801, Monticello has a median age of 42.8. The average age of males, in Monticello, is 40.4 while the average age of females is 48. When you compare this to median age of Iowa, Monticello is 4.8 years older.
The median income of individuals, in Monticello, is $25,732 while the average household income is $44,307. When comparing the median income of people living in Monticello to the rest of Iowa, the average income in Monticello is $1,889 less.