Mchenry County Historical Age Data
ACS 2010-2014 data
Total population: 307,888
Median Age (
see rank)
Mchenry County | 38.90 years old |
Illinois | 37.00 years old |
U.S. | 37.40 years old |
Median Age, Male (
see rank)
Mchenry County | 37.80 years old |
Illinois | 35.70 years old |
U.S. | 36.10 years old |
Median Age, Female (
see rank)
Mchenry County | 39.90 years old |
Illinois | 38.40 years old |
U.S. | 38.80 years old |
| Mchenry County | % of the Total Population | Illinois | U.S. |
Under 5 years | 18,211 | 5.91%, see rank | 6.30% | 6.36% |
5 to 9 years | 22,601 | 7.34%, see rank | 6.58% | 6.51% |
10 to 14 years | 24,114 | 7.83%, see rank | 6.71% | 6.59% |
15 to 19 years | 23,529 | 7.64%, see rank | 6.94% | 6.85% |
20 to 24 years | 17,069 | 5.54%, see rank | 6.95% | 7.13% |
25 to 34 years | 33,679 | 10.94%, see rank | 13.84% | 13.47% |
35 to 44 years | 43,944 | 14.27%, see rank | 13.20% | 12.96% |
45 to 54 years | 52,459 | 17.04%, see rank | 14.17% | 14.09% |
55 to 64 years | 38,069 | 12.36%, see rank | 12.13% | 12.29% |
65 to 74 years | 20,930 | 6.80%, see rank | 7.18% | 7.64% |
75 to 84 | 9,426 | 3.06%, see rank | 4.10% | 4.25% |
85 years and over | 3,857 | 1.25%, see rank | 1.90% | 1.85% |
US Census 2010 data
Total population: 308,760
Median Age (
see rank)
Mchenry County | 38.00 years old |
Illinois | 36.60 years old |
U.S. | 37.20 years old |
Median Age, Male (
see rank)
Mchenry County | 37.00 years old |
Illinois | 35.20 years old |
U.S. | 35.80 years old |
Median Age, Female (
see rank)
Mchenry County | 38.80 years old |
Illinois | 37.90 years old |
U.S. | 38.50 years old |
| Mchenry County | % of the Total Population | Illinois | U.S. |
Under 5 years | 19,896 | 6.44%, see rank | 6.51% | 6.54% |
5 to 9 years | 23,408 | 7.58%, see rank | 6.70% | 6.59% |
10 to 14 years | 25,253 | 8.18%, see rank | 6.85% | 6.70% |
15 to 19 years | 23,605 | 7.65%, see rank | 7.19% | 7.14% |
20 to 24 years | 15,468 | 5.01%, see rank | 6.85% | 6.99% |
25 to 34 years | 34,761 | 11.26%, see rank | 13.84% | 13.30% |
35 to 44 years | 47,336 | 15.33%, see rank | 13.45% | 13.30% |
45 to 54 years | 52,619 | 17.04%, see rank | 14.58% | 14.58% |
55 to 64 years | 35,094 | 11.37%, see rank | 11.48% | 11.82% |
65 to 74 years | 18,560 | 6.01%, see rank | 6.62% | 7.03% |
75 to 84 | 9,180 | 2.97%, see rank | 4.09% | 4.23% |
85 years and over | 3,580 | 1.16%, see rank | 1.83% | 1.78% |
ACS 2008-2012 data
Total population: 308,163
Median Age (
see rank)
Mchenry County | 38.00 years old |
Illinois | 36.60 years old |
U.S. | 37.20 years old |
Median Age, Male (
see rank)
Mchenry County | 36.80 years old |
Illinois | 35.30 years old |
U.S. | 35.80 years old |
Median Age, Female (
see rank)
Mchenry County | 38.90 years old |
Illinois | 38.00 years old |
U.S. | 38.50 years old |
| Mchenry County | % of the Total Population | Illinois | U.S. |
Under 5 years | 19,591 | 6.36%, see rank | 6.50% | 6.51% |
5 to 9 years | 23,875 | 7.75%, see rank | 6.68% | 6.57% |
10 to 14 years | 24,496 | 7.95%, see rank | 6.82% | 6.68% |
15 to 19 years | 23,670 | 7.68%, see rank | 7.16% | 7.09% |
20 to 24 years | 15,782 | 5.12%, see rank | 6.88% | 7.04% |
25 to 34 years | 34,552 | 11.21%, see rank | 13.84% | 13.32% |
35 to 44 years | 47,110 | 15.29%, see rank | 13.49% | 13.34% |
45 to 54 years | 52,198 | 16.94%, see rank | 14.46% | 14.44% |
55 to 64 years | 35,270 | 11.45%, see rank | 11.52% | 11.84% |
65 to 74 years | 18,891 | 6.13%, see rank | 6.71% | 7.12% |
75 to 84 | 9,124 | 2.96%, see rank | 4.11% | 4.25% |
85 years and over | 3,604 | 1.17%, see rank | 1.83% | 1.78% |
ACS 2006-2010 data
Total population: 306,050
Median Age (
see rank)
Mchenry County | 37.10 years old |
Illinois | 36.20 years old |
U.S. | 36.90 years old |
Median Age, Male (
see rank)
Mchenry County | 36.30 years old |
Illinois | 34.90 years old |
U.S. | 35.60 years old |
Median Age, Female (
see rank)
Mchenry County | 37.90 years old |
Illinois | 37.60 years old |
U.S. | 38.10 years old |
| Mchenry County | % of the Total Population | Illinois | U.S. |
Under 5 years | 20,688 | 6.76%, see rank | 6.63% | 6.62% |
5 to 9 years | 24,671 | 8.06%, see rank | 6.78% | 6.62% |
10 to 14 years | 24,455 | 7.99%, see rank | 6.94% | 6.79% |
15 to 19 years | 23,598 | 7.71%, see rank | 7.31% | 7.28% |
20 to 24 years | 15,144 | 4.95%, see rank | 6.86% | 6.98% |
25 to 34 years | 34,871 | 11.39%, see rank | 13.78% | 13.22% |
35 to 44 years | 50,218 | 16.41%, see rank | 13.96% | 13.89% |
45 to 54 years | 50,402 | 16.47%, see rank | 14.55% | 14.57% |
55 to 64 years | 32,541 | 10.63%, see rank | 10.89% | 11.28% |
65 to 74 years | 17,079 | 5.58%, see rank | 6.36% | 6.74% |
75 to 84 | 9,090 | 2.97%, see rank | 4.17% | 4.30% |
85 years and over | 3,293 | 1.08%, see rank | 1.77% | 1.70% |
ACS 2005-2009 data
Total population: 312,946
Median Age (
see rank)
Mchenry County | 36.80 years old |
Illinois | 35.90 years old |
U.S. | 36.50 years old |
Median Age, Male (
see rank)
Mchenry County | 36.00 years old |
Illinois | 34.60 years old |
U.S. | 35.20 years old |
Median Age, Female (
see rank)
Mchenry County | 37.60 years old |
Illinois | 37.20 years old |
U.S. | 37.90 years old |
| Mchenry County | % of the Total Population | Illinois | U.S. |
Under 5 years | 21,916 | 7.00%, see rank | 6.97% | 6.92% |
5 to 9 years | 24,381 | 7.79%, see rank | 6.76% | 6.59% |
10 to 14 years | 25,170 | 8.04%, see rank | 6.96% | 6.83% |
15 to 19 years | 23,169 | 7.40%, see rank | 7.24% | 7.15% |
20 to 24 years | 17,237 | 5.51%, see rank | 7.08% | 7.02% |
25 to 34 years | 35,653 | 11.39%, see rank | 13.73% | 13.42% |
35 to 44 years | 52,436 | 16.76%, see rank | 14.23% | 14.18% |
45 to 54 years | 50,513 | 16.14%, see rank | 14.47% | 14.48% |
55 to 64 years | 31,439 | 10.05%, see rank | 10.43% | 10.81% |
65 to 74 years | 17,310 | 5.53%, see rank | 6.21% | 6.50% |
75 to 84 | 10,021 | 3.20%, see rank | 4.17% | 4.40% |
85 years and over | 3,701 | 1.18%, see rank | 1.74% | 1.71% |
US Census 2000 data
Total population: 260,077
Median Age (
see rank)
Mchenry County | 34.20 years old |
Illinois | 34.70 years old |
U.S. | 35.30 years old |
Median Age, Male (
see rank)
Mchenry County | 33.50 years old |
Illinois | 33.30 years old |
U.S. | 34.00 years old |
Median Age, Female (
see rank)
Mchenry County | 34.90 years old |
Illinois | 36.00 years old |
U.S. | 36.50 years old |
| Mchenry County | % of the Total Population | Illinois | U.S. |
Under 5 years | 21,110 | 8.12%, see rank | 7.06% | 6.81% |
5 to 9 years | 23,044 | 8.86%, see rank | 7.49% | 7.30% |
10 to 14 years | 22,205 | 8.54%, see rank | 7.29% | 7.29% |
15 to 19 years | 18,130 | 6.97%, see rank | 7.20% | 7.18% |
20 to 24 years | 12,399 | 4.77%, see rank | 6.85% | 6.74% |
25 to 34 years | 36,748 | 14.13%, see rank | 14.59% | 14.18% |
35 to 44 years | 50,255 | 19.32%, see rank | 15.97% | 16.04% |
45 to 54 years | 35,866 | 13.79%, see rank | 13.10% | 13.39% |
55 to 64 years | 19,407 | 7.46%, see rank | 8.38% | 8.63% |
65 to 74 years | 11,351 | 4.36%, see rank | 6.22% | 6.54% |
75 to 84 | 7,115 | 2.74%, see rank | 4.31% | 4.39% |
85 years and over | 2,447 | 0.94%, 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.