In 2007, 6.9% of Illinois' population was reported as being under age 5, 24.9% under age 18 and 12.1% were age 65 and over.
6,9 % от населения были в возрасте до 5 лет, 24,4 % моложе 18 лет и 12,5 % в возрасте 65 лет и старше.