Johnson County Historical Age Data
ACS 2010-2014 data
Total population: 53,879
Median Age (
see rank)
| Johnson County | 29.60 years old |
| Missouri | 38.10 years old |
| U.S. | 37.40 years old |
Median Age, Male (
see rank)
| Johnson County | 28.60 years old |
| Missouri | 36.70 years old |
| U.S. | 36.10 years old |
Median Age, Female (
see rank)
| Johnson County | 30.70 years old |
| Missouri | 39.50 years old |
| U.S. | 38.80 years old |
| | Johnson County | % of the Total Population | Missouri | U.S. |
| Under 5 years | 3,554 | 6.60%, see rank | 6.29% | 6.36% |
| 5 to 9 years | 3,431 | 6.37%, see rank | 6.50% | 6.51% |
| 10 to 14 years | 3,146 | 5.84%, see rank | 6.55% | 6.59% |
| 15 to 19 years | 4,438 | 8.24%, see rank | 6.78% | 6.85% |
| 20 to 24 years | 8,537 | 15.84%, see rank | 7.04% | 7.13% |
| 25 to 34 years | 7,612 | 14.13%, see rank | 13.15% | 13.47% |
| 35 to 44 years | 5,554 | 10.31%, see rank | 12.20% | 12.96% |
| 45 to 54 years | 6,310 | 11.71%, see rank | 14.18% | 14.09% |
| 55 to 64 years | 5,263 | 9.77%, see rank | 12.67% | 12.29% |
| 65 to 74 years | 3,414 | 6.34%, see rank | 8.07% | 7.64% |
| 75 to 84 | 2,030 | 3.77%, see rank | 4.59% | 4.25% |
| 85 years and over | 590 | 1.10%, see rank | 1.98% | 1.85% |
US Census 2010 data
Total population: 52,595
Median Age (
see rank)
| Johnson County | 29.80 years old |
| Missouri | 37.90 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Johnson County | 29.00 years old |
| Missouri | 36.50 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Johnson County | 30.70 years old |
| Missouri | 39.20 years old |
| U.S. | 38.50 years old |
| | Johnson County | % of the Total Population | Missouri | U.S. |
| Under 5 years | 3,598 | 6.84%, see rank | 6.52% | 6.54% |
| 5 to 9 years | 3,326 | 6.32%, see rank | 6.52% | 6.59% |
| 10 to 14 years | 3,136 | 5.96%, see rank | 6.63% | 6.70% |
| 15 to 19 years | 4,776 | 9.08%, see rank | 7.08% | 7.14% |
| 20 to 24 years | 7,680 | 14.60%, see rank | 6.90% | 6.99% |
| 25 to 34 years | 6,878 | 13.08%, see rank | 12.95% | 13.30% |
| 35 to 44 years | 5,734 | 10.90%, see rank | 12.50% | 13.30% |
| 45 to 54 years | 6,730 | 12.80%, see rank | 14.84% | 14.58% |
| 55 to 64 years | 5,093 | 9.68%, see rank | 12.08% | 11.82% |
| 65 to 74 years | 3,154 | 6.00%, see rank | 7.52% | 7.03% |
| 75 to 84 | 1,749 | 3.33%, see rank | 4.58% | 4.23% |
| 85 years and over | 741 | 1.41%, see rank | 1.90% | 1.78% |
ACS 2008-2012 data
Total population: 52,964
Median Age (
see rank)
| Johnson County | 29.70 years old |
| Missouri | 37.90 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Johnson County | 28.90 years old |
| Missouri | 36.50 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Johnson County | 30.80 years old |
| Missouri | 39.20 years old |
| U.S. | 38.50 years old |
| | Johnson County | % of the Total Population | Missouri | U.S. |
| Under 5 years | 3,509 | 6.63%, see rank | 6.44% | 6.51% |
| 5 to 9 years | 3,312 | 6.25%, see rank | 6.51% | 6.57% |
| 10 to 14 years | 3,156 | 5.96%, see rank | 6.63% | 6.68% |
| 15 to 19 years | 4,715 | 8.90%, see rank | 7.04% | 7.09% |
| 20 to 24 years | 7,996 | 15.10%, see rank | 6.95% | 7.04% |
| 25 to 34 years | 7,096 | 13.40%, see rank | 12.96% | 13.32% |
| 35 to 44 years | 5,925 | 11.19%, see rank | 12.57% | 13.34% |
| 45 to 54 years | 6,561 | 12.39%, see rank | 14.66% | 14.44% |
| 55 to 64 years | 5,028 | 9.49%, see rank | 12.13% | 11.84% |
| 65 to 74 years | 3,179 | 6.00%, see rank | 7.60% | 7.12% |
| 75 to 84 | 1,907 | 3.60%, see rank | 4.57% | 4.25% |
| 85 years and over | 580 | 1.10%, see rank | 1.93% | 1.78% |
ACS 2006-2010 data
Total population: 52,041
Median Age (
see rank)
| Johnson County | 29.60 years old |
| Missouri | 37.60 years old |
| U.S. | 36.90 years old |
Median Age, Male (
see rank)
| Johnson County | 29.00 years old |
| Missouri | 36.20 years old |
| U.S. | 35.60 years old |
Median Age, Female (
see rank)
| Johnson County | 30.20 years old |
| Missouri | 38.90 years old |
| U.S. | 38.10 years old |
| | Johnson County | % of the Total Population | Missouri | U.S. |
| Under 5 years | 3,492 | 6.71%, see rank | 6.53% | 6.62% |
| 5 to 9 years | 3,134 | 6.02%, see rank | 6.51% | 6.62% |
| 10 to 14 years | 3,271 | 6.29%, see rank | 6.77% | 6.79% |
| 15 to 19 years | 4,908 | 9.43%, see rank | 7.26% | 7.28% |
| 20 to 24 years | 7,730 | 14.85%, see rank | 6.96% | 6.98% |
| 25 to 34 years | 6,636 | 12.75%, see rank | 12.74% | 13.22% |
| 35 to 44 years | 6,170 | 11.86%, see rank | 13.15% | 13.89% |
| 45 to 54 years | 6,618 | 12.72%, see rank | 14.84% | 14.57% |
| 55 to 64 years | 4,711 | 9.05%, see rank | 11.52% | 11.28% |
| 65 to 74 years | 3,001 | 5.77%, see rank | 7.25% | 6.74% |
| 75 to 84 | 1,795 | 3.45%, see rank | 4.61% | 4.30% |
| 85 years and over | 575 | 1.10%, see rank | 1.87% | 1.70% |
ACS 2005-2009 data
Total population: 51,997
Median Age (
see rank)
| Johnson County | 28.40 years old |
| Missouri | 37.30 years old |
| U.S. | 36.50 years old |
Median Age, Male (
see rank)
| Johnson County | 27.80 years old |
| Missouri | 35.90 years old |
| U.S. | 35.20 years old |
Median Age, Female (
see rank)
| Johnson County | 29.20 years old |
| Missouri | 38.70 years old |
| U.S. | 37.90 years old |
| | Johnson County | % of the Total Population | Missouri | U.S. |
| Under 5 years | 3,513 | 6.76%, see rank | 6.70% | 6.92% |
| 5 to 9 years | 3,019 | 5.81%, see rank | 6.45% | 6.59% |
| 10 to 14 years | 3,189 | 6.13%, see rank | 6.78% | 6.83% |
| 15 to 19 years | 5,237 | 10.07%, see rank | 7.16% | 7.15% |
| 20 to 24 years | 8,711 | 16.75%, see rank | 7.13% | 7.02% |
| 25 to 34 years | 5,684 | 10.93%, see rank | 12.83% | 13.42% |
| 35 to 44 years | 6,321 | 12.16%, see rank | 13.57% | 14.18% |
| 45 to 54 years | 6,484 | 12.47%, see rank | 14.77% | 14.48% |
| 55 to 64 years | 4,568 | 8.79%, see rank | 11.12% | 10.81% |
| 65 to 74 years | 2,876 | 5.53%, see rank | 6.95% | 6.50% |
| 75 to 84 | 1,707 | 3.28%, see rank | 4.67% | 4.40% |
| 85 years and over | 688 | 1.32%, see rank | 1.88% | 1.71% |
US Census 2000 data
Total population: 48,258
Median Age (
see rank)
| Johnson County | 28.50 years old |
| Missouri | 36.10 years old |
| U.S. | 35.30 years old |
Median Age, Male (
see rank)
| Johnson County | 27.20 years old |
| Missouri | 34.80 years old |
| U.S. | 34.00 years old |
Median Age, Female (
see rank)
| Johnson County | 29.80 years old |
| Missouri | 37.40 years old |
| U.S. | 36.50 years old |
| | Johnson County | % of the Total Population | Missouri | U.S. |
| Under 5 years | 3,238 | 6.71%, see rank | 6.61% | 6.81% |
| 5 to 9 years | 3,301 | 6.84%, see rank | 7.13% | 7.30% |
| 10 to 14 years | 3,457 | 7.16%, see rank | 7.36% | 7.29% |
| 15 to 19 years | 4,965 | 10.29%, see rank | 7.39% | 7.18% |
| 20 to 24 years | 6,887 | 14.27%, see rank | 6.60% | 6.74% |
| 25 to 34 years | 6,285 | 13.02%, see rank | 13.20% | 14.18% |
| 35 to 44 years | 7,039 | 14.59%, see rank | 15.86% | 16.04% |
| 45 to 54 years | 5,102 | 10.57%, see rank | 13.27% | 13.39% |
| 55 to 64 years | 3,498 | 7.25%, see rank | 9.07% | 8.63% |
| 65 to 74 years | 2,459 | 5.10%, see rank | 7.03% | 6.54% |
| 75 to 84 | 1,494 | 3.10%, see rank | 4.71% | 4.39% |
| 85 years and over | 533 | 1.10%, see rank | 1.76% | 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.
