Louisa County Historical Age Data
ACS 2010-2014 data
Total population: 11,305
Median Age (
see rank)
| Louisa County | 40.50 years old |
| Iowa | 38.00 years old |
| U.S. | 37.40 years old |
Median Age, Male (
see rank)
| Louisa County | 40.20 years old |
| Iowa | 36.70 years old |
| U.S. | 36.10 years old |
Median Age, Female (
see rank)
| Louisa County | 41.00 years old |
| Iowa | 39.40 years old |
| U.S. | 38.80 years old |
| | Louisa County | % of the Total Population | Iowa | U.S. |
| Under 5 years | 615 | 5.44%, see rank | 6.39% | 6.36% |
| 5 to 9 years | 772 | 6.83%, see rank | 6.62% | 6.51% |
| 10 to 14 years | 855 | 7.56%, see rank | 6.58% | 6.59% |
| 15 to 19 years | 834 | 7.38%, see rank | 6.96% | 6.85% |
| 20 to 24 years | 588 | 5.20%, see rank | 7.21% | 7.13% |
| 25 to 34 years | 1,229 | 10.87%, see rank | 12.65% | 13.47% |
| 35 to 44 years | 1,378 | 12.19%, see rank | 11.80% | 12.96% |
| 45 to 54 years | 1,773 | 15.68%, see rank | 13.73% | 14.09% |
| 55 to 64 years | 1,481 | 13.10%, see rank | 12.80% | 12.29% |
| 65 to 74 years | 951 | 8.41%, see rank | 7.81% | 7.64% |
| 75 to 84 | 568 | 5.02%, see rank | 4.98% | 4.25% |
| 85 years and over | 261 | 2.31%, see rank | 2.48% | 1.85% |
US Census 2010 data
Total population: 11,387
Median Age (
see rank)
| Louisa County | 39.80 years old |
| Iowa | 38.10 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Louisa County | 38.70 years old |
| Iowa | 36.60 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Louisa County | 41.00 years old |
| Iowa | 39.50 years old |
| U.S. | 38.50 years old |
| | Louisa County | % of the Total Population | Iowa | U.S. |
| Under 5 years | 672 | 5.90%, see rank | 6.63% | 6.54% |
| 5 to 9 years | 811 | 7.12%, see rank | 6.59% | 6.59% |
| 10 to 14 years | 898 | 7.89%, see rank | 6.59% | 6.70% |
| 15 to 19 years | 820 | 7.20%, see rank | 7.12% | 7.14% |
| 20 to 24 years | 535 | 4.70%, see rank | 7.00% | 6.99% |
| 25 to 34 years | 1,325 | 11.64%, see rank | 12.56% | 13.30% |
| 35 to 44 years | 1,407 | 12.36%, see rank | 11.97% | 13.30% |
| 45 to 54 years | 1,808 | 15.88%, see rank | 14.43% | 14.58% |
| 55 to 64 years | 1,407 | 12.36%, see rank | 12.24% | 11.82% |
| 65 to 74 years | 907 | 7.97%, see rank | 7.37% | 7.03% |
| 75 to 84 | 584 | 5.13%, see rank | 5.04% | 4.23% |
| 85 years and over | 213 | 1.87%, see rank | 2.45% | 1.78% |
ACS 2008-2012 data
Total population: 11,448
Median Age (
see rank)
| Louisa County | 39.30 years old |
| Iowa | 38.00 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Louisa County | 38.70 years old |
| Iowa | 36.60 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Louisa County | 40.20 years old |
| Iowa | 39.40 years old |
| U.S. | 38.50 years old |
| | Louisa County | % of the Total Population | Iowa | U.S. |
| Under 5 years | 667 | 5.83%, see rank | 6.53% | 6.51% |
| 5 to 9 years | 782 | 6.83%, see rank | 6.58% | 6.57% |
| 10 to 14 years | 945 | 8.25%, see rank | 6.60% | 6.68% |
| 15 to 19 years | 840 | 7.34%, see rank | 7.14% | 7.09% |
| 20 to 24 years | 560 | 4.89%, see rank | 7.08% | 7.04% |
| 25 to 34 years | 1,317 | 11.50%, see rank | 12.55% | 13.32% |
| 35 to 44 years | 1,398 | 12.21%, see rank | 12.02% | 13.34% |
| 45 to 54 years | 1,794 | 15.67%, see rank | 14.28% | 14.44% |
| 55 to 64 years | 1,396 | 12.19%, see rank | 12.27% | 11.84% |
| 65 to 74 years | 926 | 8.09%, see rank | 7.45% | 7.12% |
| 75 to 84 | 571 | 4.99%, see rank | 5.08% | 4.25% |
| 85 years and over | 252 | 2.20%, see rank | 2.42% | 1.78% |
ACS 2006-2010 data
Total population: 11,683
Median Age (
see rank)
| Louisa County | 38.30 years old |
| Iowa | 38.00 years old |
| U.S. | 36.90 years old |
Median Age, Male (
see rank)
| Louisa County | 37.30 years old |
| Iowa | 36.60 years old |
| U.S. | 35.60 years old |
Median Age, Female (
see rank)
| Louisa County | 39.60 years old |
| Iowa | 39.30 years old |
| U.S. | 38.10 years old |
| | Louisa County | % of the Total Population | Iowa | U.S. |
| Under 5 years | 683 | 5.85%, see rank | 6.56% | 6.62% |
| 5 to 9 years | 839 | 7.18%, see rank | 6.57% | 6.62% |
| 10 to 14 years | 1,060 | 9.07%, see rank | 6.64% | 6.79% |
| 15 to 19 years | 880 | 7.53%, see rank | 7.28% | 7.28% |
| 20 to 24 years | 551 | 4.72%, see rank | 7.14% | 6.98% |
| 25 to 34 years | 1,339 | 11.46%, see rank | 12.25% | 13.22% |
| 35 to 44 years | 1,515 | 12.97%, see rank | 12.56% | 13.89% |
| 45 to 54 years | 1,765 | 15.11%, see rank | 14.61% | 14.57% |
| 55 to 64 years | 1,323 | 11.32%, see rank | 11.58% | 11.28% |
| 65 to 74 years | 887 | 7.59%, see rank | 7.21% | 6.74% |
| 75 to 84 | 530 | 4.54%, see rank | 5.24% | 4.30% |
| 85 years and over | 311 | 2.66%, see rank | 2.36% | 1.70% |
ACS 2005-2009 data
Total population: 11,657
Median Age (
see rank)
| Louisa County | 38.60 years old |
| Iowa | 37.90 years old |
| U.S. | 36.50 years old |
Median Age, Male (
see rank)
| Louisa County | 37.20 years old |
| Iowa | 36.50 years old |
| U.S. | 35.20 years old |
Median Age, Female (
see rank)
| Louisa County | 40.30 years old |
| Iowa | 39.30 years old |
| U.S. | 37.90 years old |
| | Louisa County | % of the Total Population | Iowa | U.S. |
| Under 5 years | 731 | 6.27%, see rank | 6.61% | 6.92% |
| 5 to 9 years | 810 | 6.95%, see rank | 6.38% | 6.59% |
| 10 to 14 years | 955 | 8.19%, see rank | 6.59% | 6.83% |
| 15 to 19 years | 844 | 7.24%, see rank | 7.37% | 7.15% |
| 20 to 24 years | 610 | 5.23%, see rank | 7.65% | 7.02% |
| 25 to 34 years | 1,249 | 10.71%, see rank | 11.90% | 13.42% |
| 35 to 44 years | 1,749 | 15.00%, see rank | 12.95% | 14.18% |
| 45 to 54 years | 1,771 | 15.19%, see rank | 14.71% | 14.48% |
| 55 to 64 years | 1,246 | 10.69%, see rank | 11.11% | 10.81% |
| 65 to 74 years | 822 | 7.05%, see rank | 7.05% | 6.50% |
| 75 to 84 | 486 | 4.17%, see rank | 5.30% | 4.40% |
| 85 years and over | 384 | 3.29%, see rank | 2.38% | 1.71% |
US Census 2000 data
Total population: 12,183
Median Age (
see rank)
| Louisa County | 35.90 years old |
| Iowa | 36.60 years old |
| U.S. | 35.30 years old |
Median Age, Male (
see rank)
| Louisa County | 35.10 years old |
| Iowa | 35.20 years old |
| U.S. | 34.00 years old |
Median Age, Female (
see rank)
| Louisa County | 36.70 years old |
| Iowa | 38.00 years old |
| U.S. | 36.50 years old |
| | Louisa County | % of the Total Population | Iowa | U.S. |
| Under 5 years | 880 | 7.22%, see rank | 6.44% | 6.81% |
| 5 to 9 years | 934 | 7.67%, see rank | 6.92% | 7.30% |
| 10 to 14 years | 996 | 8.18%, see rank | 7.19% | 7.29% |
| 15 to 19 years | 874 | 7.17%, see rank | 7.74% | 7.18% |
| 20 to 24 years | 654 | 5.37%, see rank | 6.96% | 6.74% |
| 25 to 34 years | 1,576 | 12.94%, see rank | 12.41% | 14.18% |
| 35 to 44 years | 1,917 | 15.74%, see rank | 15.21% | 16.04% |
| 45 to 54 years | 1,523 | 12.50%, see rank | 13.42% | 13.39% |
| 55 to 64 years | 1,117 | 9.17%, see rank | 8.80% | 8.63% |
| 65 to 74 years | 881 | 7.23%, see rank | 7.24% | 6.54% |
| 75 to 84 | 578 | 4.74%, see rank | 5.44% | 4.39% |
| 85 years and over | 253 | 2.08%, see rank | 2.23% | 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.
