Alton, IL Historical Age Data
ACS 2010-2014 data
Total population: 27,517
Median Age (
see rank)
Alton, IL | 36.00 years old |
Illinois | 37.00 years old |
U.S. | 37.40 years old |
Median Age, Male (
see rank)
Alton, IL | 34.60 years old |
Illinois | 35.70 years old |
U.S. | 36.10 years old |
Median Age, Female (
see rank)
Alton, IL | 37.50 years old |
Illinois | 38.40 years old |
U.S. | 38.80 years old |
| Alton, IL | % of the Total Population | Illinois | U.S. |
Under 5 years | 1,799 | 6.54%, see rank | 6.30% | 6.36% |
5 to 9 years | 2,214 | 8.05%, see rank | 6.58% | 6.51% |
10 to 14 years | 1,612 | 5.86%, see rank | 6.71% | 6.59% |
15 to 19 years | 1,614 | 5.87%, see rank | 6.94% | 6.85% |
20 to 24 years | 1,629 | 5.92%, see rank | 6.95% | 7.13% |
25 to 34 years | 4,560 | 16.57%, see rank | 13.84% | 13.47% |
35 to 44 years | 3,091 | 11.23%, see rank | 13.20% | 12.96% |
45 to 54 years | 3,705 | 13.46%, see rank | 14.17% | 14.09% |
55 to 64 years | 3,243 | 11.79%, see rank | 12.13% | 12.29% |
65 to 74 years | 2,129 | 7.74%, see rank | 7.18% | 7.64% |
75 to 84 | 1,307 | 4.75%, see rank | 4.10% | 4.25% |
85 years and over | 614 | 2.23%, see rank | 1.90% | 1.85% |
US Census 2010 data
Total population: 27,865
Median Age (
see rank)
Alton, IL | 36.00 years old |
Illinois | 36.60 years old |
U.S. | 37.20 years old |
Median Age, Male (
see rank)
Alton, IL | 34.40 years old |
Illinois | 35.20 years old |
U.S. | 35.80 years old |
Median Age, Female (
see rank)
Alton, IL | 37.60 years old |
Illinois | 37.90 years old |
U.S. | 38.50 years old |
| Alton, IL | % of the Total Population | Illinois | U.S. |
Under 5 years | 2,027 | 7.27%, see rank | 6.51% | 6.54% |
5 to 9 years | 1,897 | 6.81%, see rank | 6.70% | 6.59% |
10 to 14 years | 1,708 | 6.13%, see rank | 6.85% | 6.70% |
15 to 19 years | 1,797 | 6.45%, see rank | 7.19% | 7.14% |
20 to 24 years | 2,014 | 7.23%, see rank | 6.85% | 6.99% |
25 to 34 years | 4,154 | 14.91%, see rank | 13.84% | 13.30% |
35 to 44 years | 3,276 | 11.76%, see rank | 13.45% | 13.30% |
45 to 54 years | 3,971 | 14.25%, see rank | 14.58% | 14.58% |
55 to 64 years | 3,146 | 11.29%, see rank | 11.48% | 11.82% |
65 to 74 years | 1,890 | 6.78%, see rank | 6.62% | 7.03% |
75 to 84 | 1,358 | 4.87%, see rank | 4.09% | 4.23% |
85 years and over | 627 | 2.25%, see rank | 1.83% | 1.78% |
ACS 2008-2012 data
Total population: 27,868
Median Age (
see rank)
Alton, IL | 33.90 years old |
Illinois | 36.60 years old |
U.S. | 37.20 years old |
Median Age, Male (
see rank)
Alton, IL | 32.80 years old |
Illinois | 35.30 years old |
U.S. | 35.80 years old |
Median Age, Female (
see rank)
Alton, IL | 34.60 years old |
Illinois | 38.00 years old |
U.S. | 38.50 years old |
| Alton, IL | % of the Total Population | Illinois | U.S. |
Under 5 years | 2,122 | 7.61%, see rank | 6.50% | 6.51% |
5 to 9 years | 2,357 | 8.46%, see rank | 6.68% | 6.57% |
10 to 14 years | 2,040 | 7.32%, see rank | 6.82% | 6.68% |
15 to 19 years | 1,505 | 5.40%, see rank | 7.16% | 7.09% |
20 to 24 years | 1,909 | 6.85%, see rank | 6.88% | 7.04% |
25 to 34 years | 4,566 | 16.38%, see rank | 13.84% | 13.32% |
35 to 44 years | 3,286 | 11.79%, see rank | 13.49% | 13.34% |
45 to 54 years | 3,356 | 12.04%, see rank | 14.46% | 14.44% |
55 to 64 years | 2,959 | 10.62%, see rank | 11.52% | 11.84% |
65 to 74 years | 1,793 | 6.43%, see rank | 6.71% | 7.12% |
75 to 84 | 1,414 | 5.07%, see rank | 4.11% | 4.25% |
85 years and over | 561 | 2.01%, see rank | 1.83% | 1.78% |
ACS 2006-2010 data
Total population: 28,380
Median Age (
see rank)
Alton, IL | 34.90 years old |
Illinois | 36.20 years old |
U.S. | 36.90 years old |
Median Age, Male (
see rank)
Alton, IL | 34.00 years old |
Illinois | 34.90 years old |
U.S. | 35.60 years old |
Median Age, Female (
see rank)
Alton, IL | 35.60 years old |
Illinois | 37.60 years old |
U.S. | 38.10 years old |
| Alton, IL | % of the Total Population | Illinois | U.S. |
Under 5 years | 2,228 | 7.85%, see rank | 6.63% | 6.62% |
5 to 9 years | 2,363 | 8.33%, see rank | 6.78% | 6.62% |
10 to 14 years | 1,918 | 6.76%, see rank | 6.94% | 6.79% |
15 to 19 years | 1,652 | 5.82%, see rank | 7.31% | 7.28% |
20 to 24 years | 2,022 | 7.12%, see rank | 6.86% | 6.98% |
25 to 34 years | 4,059 | 14.30%, see rank | 13.78% | 13.22% |
35 to 44 years | 3,376 | 11.90%, see rank | 13.96% | 13.89% |
45 to 54 years | 4,120 | 14.52%, see rank | 14.55% | 14.57% |
55 to 64 years | 2,885 | 10.17%, see rank | 10.89% | 11.28% |
65 to 74 years | 1,642 | 5.79%, see rank | 6.36% | 6.74% |
75 to 84 | 1,442 | 5.08%, see rank | 4.17% | 4.30% |
85 years and over | 673 | 2.37%, see rank | 1.77% | 1.70% |
ACS 2005-2009 data
Total population: 29,405
Median Age (
see rank)
Alton, IL | 35.50 years old |
Illinois | 35.90 years old |
U.S. | 36.50 years old |
Median Age, Male (
see rank)
Alton, IL | 33.70 years old |
Illinois | 34.60 years old |
U.S. | 35.20 years old |
Median Age, Female (
see rank)
Alton, IL | 36.90 years old |
Illinois | 37.20 years old |
U.S. | 37.90 years old |
| Alton, IL | % of the Total Population | Illinois | U.S. |
Under 5 years | 2,568 | 8.73%, see rank | 6.97% | 6.92% |
5 to 9 years | 2,332 | 7.93%, see rank | 6.76% | 6.59% |
10 to 14 years | 1,788 | 6.08%, see rank | 6.96% | 6.83% |
15 to 19 years | 1,686 | 5.73%, see rank | 7.24% | 7.15% |
20 to 24 years | 1,909 | 6.49%, see rank | 7.08% | 7.02% |
25 to 34 years | 4,181 | 14.22%, see rank | 13.73% | 13.42% |
35 to 44 years | 3,745 | 12.74%, see rank | 14.23% | 14.18% |
45 to 54 years | 3,863 | 13.14%, see rank | 14.47% | 14.48% |
55 to 64 years | 3,049 | 10.37%, see rank | 10.43% | 10.81% |
65 to 74 years | 1,777 | 6.04%, see rank | 6.21% | 6.50% |
75 to 84 | 1,687 | 5.74%, see rank | 4.17% | 4.40% |
85 years and over | 820 | 2.79%, see rank | 1.74% | 1.71% |
US Census 2000 data
Total population: 30,496
Median Age (
see rank)
Alton, IL | 35.40 years old |
Illinois | 34.70 years old |
U.S. | 35.30 years old |
Median Age, Male (
see rank)
Alton, IL | 33.00 years old |
Illinois | 33.30 years old |
U.S. | 34.00 years old |
Median Age, Female (
see rank)
Alton, IL | 37.40 years old |
Illinois | 36.00 years old |
U.S. | 36.50 years old |
| Alton, IL | % of the Total Population | Illinois | U.S. |
Under 5 years | 2,197 | 7.20%, see rank | 7.06% | 6.81% |
5 to 9 years | 2,182 | 7.16%, see rank | 7.49% | 7.30% |
10 to 14 years | 2,212 | 7.25%, see rank | 7.29% | 7.29% |
15 to 19 years | 2,021 | 6.63%, see rank | 7.20% | 7.18% |
20 to 24 years | 2,029 | 6.65%, see rank | 6.85% | 6.74% |
25 to 34 years | 4,436 | 14.55%, see rank | 14.59% | 14.18% |
35 to 44 years | 4,434 | 14.54%, see rank | 15.97% | 16.04% |
45 to 54 years | 3,666 | 12.02%, see rank | 13.10% | 13.39% |
55 to 64 years | 2,432 | 7.97%, see rank | 8.38% | 8.63% |
65 to 74 years | 2,221 | 7.28%, see rank | 6.22% | 6.54% |
75 to 84 | 1,833 | 6.01%, see rank | 4.31% | 4.39% |
85 years and over | 833 | 2.73%, see rank | 1.55% | 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.