Clay County Historical Age Data
ACS 2010-2014 data
Total population: 13,968
Median Age (
see rank)
| Clay County | 25.20 years old |
| South Dakota | 36.80 years old |
| U.S. | 37.40 years old |
Median Age, Male (
see rank)
| Clay County | 25.50 years old |
| South Dakota | 35.60 years old |
| U.S. | 36.10 years old |
Median Age, Female (
see rank)
| Clay County | 25.00 years old |
| South Dakota | 38.20 years old |
| U.S. | 38.80 years old |
| | Clay County | % of the Total Population | South Dakota | U.S. |
| Under 5 years | 696 | 4.98%, see rank | 7.10% | 6.36% |
| 5 to 9 years | 703 | 5.03%, see rank | 6.91% | 6.51% |
| 10 to 14 years | 605 | 4.33%, see rank | 6.64% | 6.59% |
| 15 to 19 years | 2,069 | 14.81%, see rank | 6.95% | 6.85% |
| 20 to 24 years | 2,846 | 20.38%, see rank | 7.15% | 7.13% |
| 25 to 34 years | 1,804 | 12.92%, see rank | 13.12% | 13.47% |
| 35 to 44 years | 1,226 | 8.78%, see rank | 11.34% | 12.96% |
| 45 to 54 years | 1,256 | 8.99%, see rank | 13.41% | 14.09% |
| 55 to 64 years | 1,319 | 9.44%, see rank | 12.72% | 12.29% |
| 65 to 74 years | 747 | 5.35%, see rank | 7.51% | 7.64% |
| 75 to 84 | 456 | 3.26%, see rank | 4.78% | 4.25% |
| 85 years and over | 241 | 1.73%, see rank | 2.36% | 1.85% |
US Census 2010 data
Total population: 13,864
Median Age (
see rank)
| Clay County | 25.00 years old |
| South Dakota | 36.90 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Clay County | 25.50 years old |
| South Dakota | 35.60 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Clay County | 24.60 years old |
| South Dakota | 38.20 years old |
| U.S. | 38.50 years old |
| | Clay County | % of the Total Population | South Dakota | U.S. |
| Under 5 years | 725 | 5.23%, see rank | 7.32% | 6.54% |
| 5 to 9 years | 693 | 5.00%, see rank | 6.82% | 6.59% |
| 10 to 14 years | 624 | 4.50%, see rank | 6.63% | 6.70% |
| 15 to 19 years | 1,633 | 11.78%, see rank | 7.08% | 7.14% |
| 20 to 24 years | 3,264 | 23.54%, see rank | 7.07% | 6.99% |
| 25 to 34 years | 1,748 | 12.61%, see rank | 12.95% | 13.30% |
| 35 to 44 years | 1,157 | 8.35%, see rank | 11.44% | 13.30% |
| 45 to 54 years | 1,344 | 9.69%, see rank | 14.36% | 14.58% |
| 55 to 64 years | 1,255 | 9.05%, see rank | 12.01% | 11.82% |
| 65 to 74 years | 712 | 5.14%, see rank | 7.08% | 7.03% |
| 75 to 84 | 445 | 3.21%, see rank | 4.88% | 4.23% |
| 85 years and over | 264 | 1.90%, see rank | 2.36% | 1.78% |
ACS 2008-2012 data
Total population: 13,966
Median Age (
see rank)
| Clay County | 25.50 years old |
| South Dakota | 37.10 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Clay County | 25.60 years old |
| South Dakota | 35.70 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Clay County | 25.50 years old |
| South Dakota | 38.50 years old |
| U.S. | 38.50 years old |
| | Clay County | % of the Total Population | South Dakota | U.S. |
| Under 5 years | 680 | 4.87%, see rank | 7.14% | 6.51% |
| 5 to 9 years | 814 | 5.83%, see rank | 6.69% | 6.57% |
| 10 to 14 years | 574 | 4.11%, see rank | 6.73% | 6.68% |
| 15 to 19 years | 2,163 | 15.49%, see rank | 7.20% | 7.09% |
| 20 to 24 years | 2,590 | 18.55%, see rank | 7.06% | 7.04% |
| 25 to 34 years | 1,884 | 13.49%, see rank | 12.84% | 13.32% |
| 35 to 44 years | 1,209 | 8.66%, see rank | 11.55% | 13.34% |
| 45 to 54 years | 1,342 | 9.61%, see rank | 14.25% | 14.44% |
| 55 to 64 years | 1,288 | 9.22%, see rank | 12.14% | 11.84% |
| 65 to 74 years | 715 | 5.12%, see rank | 7.11% | 7.12% |
| 75 to 84 | 416 | 2.98%, see rank | 4.91% | 4.25% |
| 85 years and over | 291 | 2.08%, see rank | 2.37% | 1.78% |
ACS 2006-2010 data
Total population: 13,816
Median Age (
see rank)
| Clay County | 25.00 years old |
| South Dakota | 37.20 years old |
| U.S. | 36.90 years old |
Median Age, Male (
see rank)
| Clay County | 25.10 years old |
| South Dakota | 35.80 years old |
| U.S. | 35.60 years old |
Median Age, Female (
see rank)
| Clay County | 24.80 years old |
| South Dakota | 38.50 years old |
| U.S. | 38.10 years old |
| | Clay County | % of the Total Population | South Dakota | U.S. |
| Under 5 years | 626 | 4.53%, see rank | 7.07% | 6.62% |
| 5 to 9 years | 786 | 5.69%, see rank | 6.54% | 6.62% |
| 10 to 14 years | 526 | 3.81%, see rank | 7.00% | 6.79% |
| 15 to 19 years | 2,094 | 15.16%, see rank | 7.35% | 7.28% |
| 20 to 24 years | 2,875 | 20.81%, see rank | 7.21% | 6.98% |
| 25 to 34 years | 1,664 | 12.04%, see rank | 12.43% | 13.22% |
| 35 to 44 years | 1,212 | 8.77%, see rank | 12.10% | 13.89% |
| 45 to 54 years | 1,438 | 10.41%, see rank | 14.72% | 14.57% |
| 55 to 64 years | 1,164 | 8.43%, see rank | 11.32% | 11.28% |
| 65 to 74 years | 719 | 5.20%, see rank | 6.87% | 6.74% |
| 75 to 84 | 443 | 3.21%, see rank | 5.07% | 4.30% |
| 85 years and over | 269 | 1.95%, see rank | 2.32% | 1.70% |
ACS 2005-2009 data
Total population: 13,431
Median Age (
see rank)
| Clay County | 24.00 years old |
| South Dakota | 37.00 years old |
| U.S. | 36.50 years old |
Median Age, Male (
see rank)
| Clay County | 23.80 years old |
| South Dakota | 35.50 years old |
| U.S. | 35.20 years old |
Median Age, Female (
see rank)
| Clay County | 24.20 years old |
| South Dakota | 38.40 years old |
| U.S. | 37.90 years old |
| | Clay County | % of the Total Population | South Dakota | U.S. |
| Under 5 years | 654 | 4.87%, see rank | 7.07% | 6.92% |
| 5 to 9 years | 652 | 4.85%, see rank | 6.43% | 6.59% |
| 10 to 14 years | 500 | 3.72%, see rank | 6.83% | 6.83% |
| 15 to 19 years | 2,049 | 15.26%, see rank | 7.56% | 7.15% |
| 20 to 24 years | 3,317 | 24.70%, see rank | 7.61% | 7.02% |
| 25 to 34 years | 1,273 | 9.48%, see rank | 12.29% | 13.42% |
| 35 to 44 years | 1,212 | 9.02%, see rank | 12.31% | 14.18% |
| 45 to 54 years | 1,358 | 10.11%, see rank | 14.58% | 14.48% |
| 55 to 64 years | 1,029 | 7.66%, see rank | 10.99% | 10.81% |
| 65 to 74 years | 648 | 4.82%, see rank | 6.80% | 6.50% |
| 75 to 84 | 511 | 3.80%, see rank | 5.20% | 4.40% |
| 85 years and over | 228 | 1.70%, see rank | 2.35% | 1.71% |
US Census 2000 data
Total population: 13,537
Median Age (
see rank)
| Clay County | 24.90 years old |
| South Dakota | 35.60 years old |
| U.S. | 35.30 years old |
Median Age, Male (
see rank)
| Clay County | 25.10 years old |
| South Dakota | 34.40 years old |
| U.S. | 34.00 years old |
Median Age, Female (
see rank)
| Clay County | 24.70 years old |
| South Dakota | 36.70 years old |
| U.S. | 36.50 years old |
| | Clay County | % of the Total Population | South Dakota | U.S. |
| Under 5 years | 729 | 5.39%, see rank | 6.77% | 6.81% |
| 5 to 9 years | 700 | 5.17%, see rank | 7.22% | 7.30% |
| 10 to 14 years | 688 | 5.08%, see rank | 7.88% | 7.29% |
| 15 to 19 years | 1,661 | 12.27%, see rank | 8.27% | 7.18% |
| 20 to 24 years | 3,034 | 22.41%, see rank | 7.00% | 6.74% |
| 25 to 34 years | 1,795 | 13.26%, see rank | 12.06% | 14.18% |
| 35 to 44 years | 1,430 | 10.56%, see rank | 15.29% | 16.04% |
| 45 to 54 years | 1,337 | 9.88%, see rank | 12.94% | 13.39% |
| 55 to 64 years | 799 | 5.90%, see rank | 8.26% | 8.63% |
| 65 to 74 years | 637 | 4.71%, see rank | 7.04% | 6.54% |
| 75 to 84 | 505 | 3.73%, see rank | 5.16% | 4.39% |
| 85 years and over | 222 | 1.64%, see rank | 2.13% | 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.
