From a total population of 12,371, Winnetka has a median age of 42.4. The average age of males, in Winnetka, is 42 while the average age of females is 42.9. When you compare this to median age of Illinois, Winnetka is 5.4 years older.
The median income of individuals, in Winnetka, is $98,139 while the average household income is $207,540. When comparing the median income of people living in Winnetka to the rest of Illinois, the average income in Winnetka is $68,120 more.