Illinois Historical Age Data
ACS 2010-2014 data
Total population: 12,868,747
Median Age (
see rank)
Illinois | 37.00 years old |
U.S. | 37.40 years old |
Median Age, Male (
see rank)
Illinois | 35.70 years old |
U.S. | 36.10 years old |
Median Age, Female (
see rank)
Illinois | 38.40 years old |
U.S. | 38.80 years old |
| Illinois | % of the Total Population | U.S. |
Under 5 years | 810,671 | 6.30%, see rank | 6.36% |
5 to 9 years | 846,832 | 6.58%, see rank | 6.51% |
10 to 14 years | 863,760 | 6.71%, see rank | 6.59% |
15 to 19 years | 892,754 | 6.94%, see rank | 6.85% |
20 to 24 years | 894,175 | 6.95%, see rank | 7.13% |
25 to 34 years | 1,781,319 | 13.84%, see rank | 13.47% |
35 to 44 years | 1,699,140 | 13.20%, see rank | 12.96% |
45 to 54 years | 1,823,332 | 14.17%, see rank | 14.09% |
55 to 64 years | 1,560,481 | 12.13%, see rank | 12.29% |
65 to 74 years | 924,083 | 7.18%, see rank | 7.64% |
75 to 84 | 527,254 | 4.10%, see rank | 4.25% |
85 years and over | 244,946 | 1.90%, see rank | 1.85% |
US Census 2010 data
Total population: 12,830,632
Median Age (
see rank)
Illinois | 36.60 years old |
U.S. | 37.20 years old |
Median Age, Male (
see rank)
Illinois | 35.20 years old |
U.S. | 35.80 years old |
Median Age, Female (
see rank)
Illinois | 37.90 years old |
U.S. | 38.50 years old |
| Illinois | % of the Total Population | U.S. |
Under 5 years | 835,577 | 6.51%, see rank | 6.54% |
5 to 9 years | 859,405 | 6.70%, see rank | 6.59% |
10 to 14 years | 879,448 | 6.85%, see rank | 6.70% |
15 to 19 years | 922,092 | 7.19%, see rank | 7.14% |
20 to 24 years | 878,964 | 6.85%, see rank | 6.99% |
25 to 34 years | 1,775,957 | 13.84%, see rank | 13.30% |
35 to 44 years | 1,725,890 | 13.45%, see rank | 13.30% |
45 to 54 years | 1,870,879 | 14.58%, see rank | 14.58% |
55 to 64 years | 1,473,207 | 11.48%, see rank | 11.82% |
65 to 74 years | 849,535 | 6.62%, see rank | 7.03% |
75 to 84 | 524,766 | 4.09%, see rank | 4.23% |
85 years and over | 234,912 | 1.83%, see rank | 1.78% |
ACS 2008-2012 data
Total population: 12,823,860
Median Age (
see rank)
Illinois | 36.60 years old |
U.S. | 37.20 years old |
Median Age, Male (
see rank)
Illinois | 35.30 years old |
U.S. | 35.80 years old |
Median Age, Female (
see rank)
Illinois | 38.00 years old |
U.S. | 38.50 years old |
| Illinois | % of the Total Population | U.S. |
Under 5 years | 832,930 | 6.50%, see rank | 6.51% |
5 to 9 years | 856,381 | 6.68%, see rank | 6.57% |
10 to 14 years | 874,587 | 6.82%, see rank | 6.68% |
15 to 19 years | 918,175 | 7.16%, see rank | 7.09% |
20 to 24 years | 881,840 | 6.88%, see rank | 7.04% |
25 to 34 years | 1,774,620 | 13.84%, see rank | 13.32% |
35 to 44 years | 1,730,297 | 13.49%, see rank | 13.34% |
45 to 54 years | 1,854,809 | 14.46%, see rank | 14.44% |
55 to 64 years | 1,477,877 | 11.52%, see rank | 11.84% |
65 to 74 years | 860,161 | 6.71%, see rank | 7.12% |
75 to 84 | 527,019 | 4.11%, see rank | 4.25% |
85 years and over | 235,164 | 1.83%, see rank | 1.78% |
ACS 2006-2010 data
Total population: 12,745,359
Median Age (
see rank)
Illinois | 36.20 years old |
U.S. | 36.90 years old |
Median Age, Male (
see rank)
Illinois | 34.90 years old |
U.S. | 35.60 years old |
Median Age, Female (
see rank)
Illinois | 37.60 years old |
U.S. | 38.10 years old |
| Illinois | % of the Total Population | U.S. |
Under 5 years | 845,118 | 6.63%, see rank | 6.62% |
5 to 9 years | 864,101 | 6.78%, see rank | 6.62% |
10 to 14 years | 883,895 | 6.94%, see rank | 6.79% |
15 to 19 years | 931,708 | 7.31%, see rank | 7.28% |
20 to 24 years | 874,555 | 6.86%, see rank | 6.98% |
25 to 34 years | 1,756,687 | 13.78%, see rank | 13.22% |
35 to 44 years | 1,779,037 | 13.96%, see rank | 13.89% |
45 to 54 years | 1,854,338 | 14.55%, see rank | 14.57% |
55 to 64 years | 1,387,720 | 10.89%, see rank | 11.28% |
65 to 74 years | 810,679 | 6.36%, see rank | 6.74% |
75 to 84 | 531,375 | 4.17%, see rank | 4.30% |
85 years and over | 226,146 | 1.77%, see rank | 1.70% |
ACS 2005-2009 data
Total population: 12,785,043
Median Age (
see rank)
Illinois | 35.90 years old |
U.S. | 36.50 years old |
Median Age, Male (
see rank)
Illinois | 34.60 years old |
U.S. | 35.20 years old |
Median Age, Female (
see rank)
Illinois | 37.20 years old |
U.S. | 37.90 years old |
| Illinois | % of the Total Population | U.S. |
Under 5 years | 890,830 | 6.97%, see rank | 6.92% |
5 to 9 years | 863,798 | 6.76%, see rank | 6.59% |
10 to 14 years | 890,122 | 6.96%, see rank | 6.83% |
15 to 19 years | 925,597 | 7.24%, see rank | 7.15% |
20 to 24 years | 905,374 | 7.08%, see rank | 7.02% |
25 to 34 years | 1,756,017 | 13.73%, see rank | 13.42% |
35 to 44 years | 1,818,828 | 14.23%, see rank | 14.18% |
45 to 54 years | 1,849,893 | 14.47%, see rank | 14.48% |
55 to 64 years | 1,333,538 | 10.43%, see rank | 10.81% |
65 to 74 years | 794,382 | 6.21%, see rank | 6.50% |
75 to 84 | 533,642 | 4.17%, see rank | 4.40% |
85 years and over | 223,022 | 1.74%, see rank | 1.71% |
US Census 2000 data
Total population: 12,419,293
Median Age (
see rank)
Illinois | 34.70 years old |
U.S. | 35.30 years old |
Median Age, Male (
see rank)
Illinois | 33.30 years old |
U.S. | 34.00 years old |
Median Age, Female (
see rank)
Illinois | 36.00 years old |
U.S. | 36.50 years old |
| Illinois | % of the Total Population | U.S. |
Under 5 years | 876,549 | 7.06%, see rank | 6.81% |
5 to 9 years | 929,858 | 7.49%, see rank | 7.30% |
10 to 14 years | 905,097 | 7.29%, see rank | 7.29% |
15 to 19 years | 894,002 | 7.20%, see rank | 7.18% |
20 to 24 years | 850,843 | 6.85%, see rank | 6.74% |
25 to 34 years | 1,811,674 | 14.59%, see rank | 14.18% |
35 to 44 years | 1,983,870 | 15.97%, see rank | 16.04% |
45 to 54 years | 1,626,742 | 13.10%, see rank | 13.39% |
55 to 64 years | 1,040,633 | 8.38%, see rank | 8.63% |
65 to 74 years | 772,247 | 6.22%, see rank | 6.54% |
75 to 84 | 535,747 | 4.31%, see rank | 4.39% |
85 years and over | 192,031 | 1.55%, see rank | 1.51% |
* ACS stands for U.S. Census American Community Survey. According to the U.S. Census, if the date is a range, you can interpret the data as an average of the period of time.