From a total population of 143,117, Naperville has a median age of 38.5. The average age of males, in Naperville, is 36.5 while the average age of females is 40.1. When you compare this to median age of Illinois, Naperville is 1.5 years older.
The median income of individuals, in Naperville, is $46,620 while the average household income is $109,512. When comparing the median income of people living in Naperville to the rest of Illinois, the average income in Naperville is $16,601 more.