From a total population of 172,390, McLean County has a median age of 32.4. The average age of males, in McLean County, is 31.8 while the average age of females is 33. When you compare this to median age of Illinois, McLean County is 4.6 years younger.
The median income of individuals, in McLean County, is $30,728 while the average household income is $61,955. When comparing the median income of people living in McLean County to the rest of Illinois, the average income in McLean County is $709 more.