From a total population of 11,462, Northlake has a median age of 34.7. The average age of males, in Northlake, is 34.3 while the average age of females is 35.5. When you compare this to median age of Illinois, Northlake is 2.3 years younger.
The median income of individuals, in Northlake, is $20,709 while the average household income is $58,262. When comparing the median income of people living in Northlake to the rest of Illinois, the average income in Northlake is $9,310 less.