Johnson County Historical Age Data
ACS 2010-2014 data
Total population: 560,025
Median Age (
see rank)
| Johnson County | 36.60 years old |
| Kansas | 36.00 years old |
| U.S. | 37.40 years old |
Median Age, Male (
see rank)
| Johnson County | 35.50 years old |
| Kansas | 34.70 years old |
| U.S. | 36.10 years old |
Median Age, Female (
see rank)
| Johnson County | 37.90 years old |
| Kansas | 37.40 years old |
| U.S. | 38.80 years old |
| | Johnson County | % of the Total Population | Kansas | U.S. |
| Under 5 years | 38,625 | 6.90%, see rank | 7.03% | 6.36% |
| 5 to 9 years | 40,936 | 7.31%, see rank | 7.08% | 6.51% |
| 10 to 14 years | 41,116 | 7.34%, see rank | 6.92% | 6.59% |
| 15 to 19 years | 36,429 | 6.50%, see rank | 7.03% | 6.85% |
| 20 to 24 years | 29,372 | 5.24%, see rank | 7.35% | 7.13% |
| 25 to 34 years | 80,347 | 14.35%, see rank | 13.33% | 13.47% |
| 35 to 44 years | 78,655 | 14.04%, see rank | 11.99% | 12.96% |
| 45 to 54 years | 80,829 | 14.43%, see rank | 13.40% | 14.09% |
| 55 to 64 years | 67,837 | 12.11%, see rank | 12.16% | 12.29% |
| 65 to 74 years | 36,196 | 6.46%, see rank | 7.20% | 7.64% |
| 75 to 84 | 19,331 | 3.45%, see rank | 4.38% | 4.25% |
| 85 years and over | 10,352 | 1.85%, see rank | 2.12% | 1.85% |
US Census 2010 data
Total population: 544,179
Median Age (
see rank)
| Johnson County | 36.40 years old |
| Kansas | 36.00 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Johnson County | 35.20 years old |
| Kansas | 34.70 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Johnson County | 37.60 years old |
| Kansas | 37.40 years old |
| U.S. | 38.50 years old |
| | Johnson County | % of the Total Population | Kansas | U.S. |
| Under 5 years | 39,180 | 7.20%, see rank | 7.20% | 6.54% |
| 5 to 9 years | 40,744 | 7.49%, see rank | 7.10% | 6.59% |
| 10 to 14 years | 40,024 | 7.35%, see rank | 6.97% | 6.70% |
| 15 to 19 years | 34,414 | 6.32%, see rank | 7.14% | 7.14% |
| 20 to 24 years | 27,890 | 5.13%, see rank | 7.17% | 6.99% |
| 25 to 34 years | 79,236 | 14.56%, see rank | 13.24% | 13.30% |
| 35 to 44 years | 78,036 | 14.34%, see rank | 12.15% | 13.30% |
| 45 to 54 years | 81,839 | 15.04%, see rank | 14.24% | 14.58% |
| 55 to 64 years | 63,494 | 11.67%, see rank | 11.61% | 11.82% |
| 65 to 74 years | 31,156 | 5.73%, see rank | 6.67% | 7.03% |
| 75 to 84 | 18,834 | 3.46%, see rank | 4.43% | 4.23% |
| 85 years and over | 9,332 | 1.71%, see rank | 2.08% | 1.78% |
ACS 2008-2012 data
Total population: 546,046
Median Age (
see rank)
| Johnson County | 36.40 years old |
| Kansas | 36.00 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Johnson County | 35.20 years old |
| Kansas | 34.70 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Johnson County | 37.50 years old |
| Kansas | 37.50 years old |
| U.S. | 38.50 years old |
| | Johnson County | % of the Total Population | Kansas | U.S. |
| Under 5 years | 38,542 | 7.06%, see rank | 7.11% | 6.51% |
| 5 to 9 years | 40,704 | 7.45%, see rank | 7.06% | 6.57% |
| 10 to 14 years | 39,912 | 7.31%, see rank | 6.97% | 6.68% |
| 15 to 19 years | 35,156 | 6.44%, see rank | 7.15% | 7.09% |
| 20 to 24 years | 28,219 | 5.17%, see rank | 7.24% | 7.04% |
| 25 to 34 years | 79,571 | 14.57%, see rank | 13.20% | 13.32% |
| 35 to 44 years | 78,591 | 14.39%, see rank | 12.23% | 13.34% |
| 45 to 54 years | 81,310 | 14.89%, see rank | 14.11% | 14.44% |
| 55 to 64 years | 63,687 | 11.66%, see rank | 11.66% | 11.84% |
| 65 to 74 years | 31,802 | 5.82%, see rank | 6.75% | 7.12% |
| 75 to 84 | 18,780 | 3.44%, see rank | 4.42% | 4.25% |
| 85 years and over | 9,772 | 1.79%, see rank | 2.10% | 1.78% |
ACS 2006-2010 data
Total population: 531,228
Median Age (
see rank)
| Johnson County | 36.10 years old |
| Kansas | 36.10 years old |
| U.S. | 36.90 years old |
Median Age, Male (
see rank)
| Johnson County | 35.00 years old |
| Kansas | 34.80 years old |
| U.S. | 35.60 years old |
Median Age, Female (
see rank)
| Johnson County | 37.20 years old |
| Kansas | 37.50 years old |
| U.S. | 38.10 years old |
| | Johnson County | % of the Total Population | Kansas | U.S. |
| Under 5 years | 38,052 | 7.16%, see rank | 7.09% | 6.62% |
| 5 to 9 years | 40,738 | 7.67%, see rank | 7.07% | 6.62% |
| 10 to 14 years | 38,208 | 7.19%, see rank | 6.98% | 6.79% |
| 15 to 19 years | 34,224 | 6.44%, see rank | 7.37% | 7.28% |
| 20 to 24 years | 28,713 | 5.41%, see rank | 7.31% | 6.98% |
| 25 to 34 years | 76,830 | 14.46%, see rank | 12.84% | 13.22% |
| 35 to 44 years | 79,448 | 14.96%, see rank | 12.73% | 13.89% |
| 45 to 54 years | 80,340 | 15.12%, see rank | 14.49% | 14.57% |
| 55 to 64 years | 58,494 | 11.01%, see rank | 11.03% | 11.28% |
| 65 to 74 years | 28,530 | 5.37%, see rank | 6.47% | 6.74% |
| 75 to 84 | 19,089 | 3.59%, see rank | 4.54% | 4.30% |
| 85 years and over | 8,562 | 1.61%, see rank | 2.08% | 1.70% |
ACS 2005-2009 data
Total population: 525,108
Median Age (
see rank)
| Johnson County | 35.70 years old |
| Kansas | 35.90 years old |
| U.S. | 36.50 years old |
Median Age, Male (
see rank)
| Johnson County | 34.60 years old |
| Kansas | 34.50 years old |
| U.S. | 35.20 years old |
Median Age, Female (
see rank)
| Johnson County | 36.90 years old |
| Kansas | 37.40 years old |
| U.S. | 37.90 years old |
| | Johnson County | % of the Total Population | Kansas | U.S. |
| Under 5 years | 38,331 | 7.30%, see rank | 7.15% | 6.92% |
| 5 to 9 years | 38,032 | 7.24%, see rank | 6.82% | 6.59% |
| 10 to 14 years | 36,631 | 6.98%, see rank | 6.88% | 6.83% |
| 15 to 19 years | 34,025 | 6.48%, see rank | 7.28% | 7.15% |
| 20 to 24 years | 32,214 | 6.13%, see rank | 7.95% | 7.02% |
| 25 to 34 years | 77,486 | 14.76%, see rank | 12.76% | 13.42% |
| 35 to 44 years | 79,912 | 15.22%, see rank | 13.08% | 14.18% |
| 45 to 54 years | 79,059 | 15.06%, see rank | 14.49% | 14.48% |
| 55 to 64 years | 54,772 | 10.43%, see rank | 10.61% | 10.81% |
| 65 to 74 years | 27,230 | 5.19%, see rank | 6.31% | 6.50% |
| 75 to 84 | 19,206 | 3.66%, see rank | 4.58% | 4.40% |
| 85 years and over | 8,210 | 1.56%, see rank | 2.09% | 1.71% |
US Census 2000 data
Total population: 451,086
Median Age (
see rank)
| Johnson County | 35.20 years old |
| Kansas | 35.20 years old |
| U.S. | 35.30 years old |
Median Age, Male (
see rank)
| Johnson County | 34.00 years old |
| Kansas | 33.70 years old |
| U.S. | 34.00 years old |
Median Age, Female (
see rank)
| Johnson County | 36.30 years old |
| Kansas | 36.50 years old |
| U.S. | 36.50 years old |
| | Johnson County | % of the Total Population | Kansas | U.S. |
| Under 5 years | 33,641 | 7.46%, see rank | 7.02% | 6.81% |
| 5 to 9 years | 34,076 | 7.55%, see rank | 7.27% | 7.30% |
| 10 to 14 years | 34,594 | 7.67%, see rank | 7.59% | 7.29% |
| 15 to 19 years | 29,883 | 6.62%, see rank | 7.82% | 7.18% |
| 20 to 24 years | 24,083 | 5.34%, see rank | 7.07% | 6.74% |
| 25 to 34 years | 67,759 | 15.02%, see rank | 12.98% | 14.18% |
| 35 to 44 years | 80,309 | 17.80%, see rank | 15.64% | 16.04% |
| 45 to 54 years | 66,767 | 14.80%, see rank | 13.17% | 13.39% |
| 55 to 64 years | 34,905 | 7.74%, see rank | 8.19% | 8.63% |
| 65 to 74 years | 22,921 | 5.08%, see rank | 6.54% | 6.54% |
| 75 to 84 | 16,253 | 3.60%, see rank | 4.78% | 4.39% |
| 85 years and over | 5,895 | 1.31%, see rank | 1.93% | 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.
