Mercer County Historical Age Data
ACS 2010-2014 data
Total population: 21,311
Median Age (
see rank)
| Mercer County | 42.70 years old |
| Kentucky | 38.30 years old |
| U.S. | 37.40 years old |
Median Age, Male (
see rank)
| Mercer County | 41.00 years old |
| Kentucky | 37.00 years old |
| U.S. | 36.10 years old |
Median Age, Female (
see rank)
| Mercer County | 44.70 years old |
| Kentucky | 39.70 years old |
| U.S. | 38.80 years old |
| | Mercer County | % of the Total Population | Kentucky | U.S. |
| Under 5 years | 1,285 | 6.03%, see rank | 6.34% | 6.36% |
| 5 to 9 years | 1,334 | 6.26%, see rank | 6.44% | 6.51% |
| 10 to 14 years | 1,361 | 6.39%, see rank | 6.56% | 6.59% |
| 15 to 19 years | 1,383 | 6.49%, see rank | 6.59% | 6.85% |
| 20 to 24 years | 1,055 | 4.95%, see rank | 7.01% | 7.13% |
| 25 to 34 years | 2,334 | 10.95%, see rank | 12.91% | 13.47% |
| 35 to 44 years | 2,545 | 11.94%, see rank | 12.97% | 12.96% |
| 45 to 54 years | 3,313 | 15.55%, see rank | 14.30% | 14.09% |
| 55 to 64 years | 3,112 | 14.60%, see rank | 12.86% | 12.29% |
| 65 to 74 years | 2,077 | 9.75%, see rank | 8.08% | 7.64% |
| 75 to 84 | 940 | 4.41%, see rank | 4.25% | 4.25% |
| 85 years and over | 572 | 2.68%, see rank | 1.69% | 1.85% |
US Census 2010 data
Total population: 21,331
Median Age (
see rank)
| Mercer County | 41.70 years old |
| Kentucky | 38.10 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Mercer County | 40.10 years old |
| Kentucky | 36.70 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Mercer County | 43.40 years old |
| Kentucky | 39.30 years old |
| U.S. | 38.50 years old |
| | Mercer County | % of the Total Population | Kentucky | U.S. |
| Under 5 years | 1,275 | 5.98%, see rank | 6.51% | 6.54% |
| 5 to 9 years | 1,337 | 6.27%, see rank | 6.52% | 6.59% |
| 10 to 14 years | 1,462 | 6.85%, see rank | 6.55% | 6.70% |
| 15 to 19 years | 1,441 | 6.76%, see rank | 6.84% | 7.14% |
| 20 to 24 years | 1,022 | 4.79%, see rank | 6.68% | 6.99% |
| 25 to 34 years | 2,303 | 10.80%, see rank | 13.05% | 13.30% |
| 35 to 44 years | 2,783 | 13.05%, see rank | 13.29% | 13.30% |
| 45 to 54 years | 3,366 | 15.78%, see rank | 14.82% | 14.58% |
| 55 to 64 years | 2,947 | 13.82%, see rank | 12.42% | 11.82% |
| 65 to 74 years | 1,956 | 9.17%, see rank | 7.50% | 7.03% |
| 75 to 84 | 1,026 | 4.81%, see rank | 4.23% | 4.23% |
| 85 years and over | 413 | 1.94%, see rank | 1.59% | 1.78% |
ACS 2008-2012 data
Total population: 21,283
Median Age (
see rank)
| Mercer County | 42.30 years old |
| Kentucky | 38.00 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Mercer County | 41.30 years old |
| Kentucky | 36.70 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Mercer County | 43.50 years old |
| Kentucky | 39.30 years old |
| U.S. | 38.50 years old |
| | Mercer County | % of the Total Population | Kentucky | U.S. |
| Under 5 years | 1,300 | 6.11%, see rank | 6.47% | 6.51% |
| 5 to 9 years | 1,364 | 6.41%, see rank | 6.47% | 6.57% |
| 10 to 14 years | 1,434 | 6.74%, see rank | 6.61% | 6.68% |
| 15 to 19 years | 1,401 | 6.58%, see rank | 6.78% | 7.09% |
| 20 to 24 years | 1,031 | 4.84%, see rank | 6.80% | 7.04% |
| 25 to 34 years | 2,299 | 10.80%, see rank | 12.98% | 13.32% |
| 35 to 44 years | 2,651 | 12.46%, see rank | 13.34% | 13.34% |
| 45 to 54 years | 3,420 | 16.07%, see rank | 14.66% | 14.44% |
| 55 to 64 years | 2,886 | 13.56%, see rank | 12.45% | 11.84% |
| 65 to 74 years | 2,022 | 9.50%, see rank | 7.59% | 7.12% |
| 75 to 84 | 954 | 4.48%, see rank | 4.21% | 4.25% |
| 85 years and over | 521 | 2.45%, see rank | 1.64% | 1.78% |
ACS 2006-2010 data
Total population: 21,272
Median Age (
see rank)
| Mercer County | 41.40 years old |
| Kentucky | 37.70 years old |
| U.S. | 36.90 years old |
Median Age, Male (
see rank)
| Mercer County | 39.30 years old |
| Kentucky | 36.30 years old |
| U.S. | 35.60 years old |
Median Age, Female (
see rank)
| Mercer County | 43.00 years old |
| Kentucky | 39.00 years old |
| U.S. | 38.10 years old |
| | Mercer County | % of the Total Population | Kentucky | U.S. |
| Under 5 years | 1,413 | 6.64%, see rank | 6.49% | 6.62% |
| 5 to 9 years | 1,282 | 6.03%, see rank | 6.53% | 6.62% |
| 10 to 14 years | 1,573 | 7.39%, see rank | 6.65% | 6.79% |
| 15 to 19 years | 1,303 | 6.13%, see rank | 6.96% | 7.28% |
| 20 to 24 years | 983 | 4.62%, see rank | 6.73% | 6.98% |
| 25 to 34 years | 2,409 | 11.32%, see rank | 13.03% | 13.22% |
| 35 to 44 years | 2,797 | 13.15%, see rank | 13.86% | 13.89% |
| 45 to 54 years | 3,432 | 16.13%, see rank | 14.80% | 14.57% |
| 55 to 64 years | 2,775 | 13.05%, see rank | 11.89% | 11.28% |
| 65 to 74 years | 1,902 | 8.94%, see rank | 7.24% | 6.74% |
| 75 to 84 | 929 | 4.37%, see rank | 4.23% | 4.30% |
| 85 years and over | 474 | 2.23%, see rank | 1.59% | 1.70% |
ACS 2005-2009 data
Total population: 21,734
Median Age (
see rank)
| Mercer County | 40.10 years old |
| Kentucky | 37.30 years old |
| U.S. | 36.50 years old |
Median Age, Male (
see rank)
| Mercer County | 37.70 years old |
| Kentucky | 35.80 years old |
| U.S. | 35.20 years old |
Median Age, Female (
see rank)
| Mercer County | 41.90 years old |
| Kentucky | 38.70 years old |
| U.S. | 37.90 years old |
| | Mercer County | % of the Total Population | Kentucky | U.S. |
| Under 5 years | 1,498 | 6.89%, see rank | 6.66% | 6.92% |
| 5 to 9 years | 1,331 | 6.12%, see rank | 6.43% | 6.59% |
| 10 to 14 years | 1,598 | 7.35%, see rank | 6.57% | 6.83% |
| 15 to 19 years | 1,270 | 5.84%, see rank | 6.86% | 7.15% |
| 20 to 24 years | 1,108 | 5.10%, see rank | 7.03% | 7.02% |
| 25 to 34 years | 2,631 | 12.11%, see rank | 13.30% | 13.42% |
| 35 to 44 years | 3,030 | 13.94%, see rank | 14.13% | 14.18% |
| 45 to 54 years | 3,353 | 15.43%, see rank | 14.71% | 14.48% |
| 55 to 64 years | 2,683 | 12.34%, see rank | 11.42% | 10.81% |
| 65 to 74 years | 1,839 | 8.46%, see rank | 6.97% | 6.50% |
| 75 to 84 | 957 | 4.40%, see rank | 4.33% | 4.40% |
| 85 years and over | 436 | 2.01%, see rank | 1.58% | 1.71% |
US Census 2000 data
Total population: 20,817
Median Age (
see rank)
| Mercer County | 38.20 years old |
| Kentucky | 35.90 years old |
| U.S. | 35.30 years old |
Median Age, Male (
see rank)
| Mercer County | 36.50 years old |
| Kentucky | 34.60 years old |
| U.S. | 34.00 years old |
Median Age, Female (
see rank)
| Mercer County | 39.40 years old |
| Kentucky | 37.10 years old |
| U.S. | 36.50 years old |
| | Mercer County | % of the Total Population | Kentucky | U.S. |
| Under 5 years | 1,337 | 6.42%, see rank | 6.58% | 6.81% |
| 5 to 9 years | 1,542 | 7.41%, see rank | 6.91% | 7.30% |
| 10 to 14 years | 1,379 | 6.62%, see rank | 6.91% | 7.29% |
| 15 to 19 years | 1,294 | 6.22%, see rank | 7.15% | 7.18% |
| 20 to 24 years | 1,078 | 5.18%, see rank | 7.00% | 6.74% |
| 25 to 34 years | 2,751 | 13.22%, see rank | 14.06% | 14.18% |
| 35 to 44 years | 3,302 | 15.86%, see rank | 15.90% | 16.04% |
| 45 to 54 years | 2,928 | 14.07%, see rank | 13.78% | 13.39% |
| 55 to 64 years | 2,169 | 10.42%, see rank | 9.22% | 8.63% |
| 65 to 74 years | 1,607 | 7.72%, see rank | 6.78% | 6.54% |
| 75 to 84 | 1,071 | 5.14%, see rank | 4.27% | 4.39% |
| 85 years and over | 359 | 1.72%, see rank | 1.44% | 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.
