Harford County Historical Age Data
ACS 2010-2014 data
Total population: 248,029
Median Age (
see rank)
| Harford County | 39.90 years old |
| Maryland | 38.10 years old |
| U.S. | 37.40 years old |
Median Age, Male (
see rank)
| Harford County | 38.40 years old |
| Maryland | 36.50 years old |
| U.S. | 36.10 years old |
Median Age, Female (
see rank)
| Harford County | 41.10 years old |
| Maryland | 39.60 years old |
| U.S. | 38.80 years old |
| | Harford County | % of the Total Population | Maryland | U.S. |
| Under 5 years | 14,329 | 5.78%, see rank | 6.24% | 6.36% |
| 5 to 9 years | 16,512 | 6.66%, see rank | 6.30% | 6.51% |
| 10 to 14 years | 17,029 | 6.87%, see rank | 6.41% | 6.59% |
| 15 to 19 years | 16,917 | 6.82%, see rank | 6.73% | 6.85% |
| 20 to 24 years | 15,042 | 6.06%, see rank | 6.84% | 7.13% |
| 25 to 34 years | 29,644 | 11.95%, see rank | 13.60% | 13.47% |
| 35 to 44 years | 32,245 | 13.00%, see rank | 13.23% | 12.96% |
| 45 to 54 years | 40,317 | 16.25%, see rank | 15.18% | 14.09% |
| 55 to 64 years | 32,471 | 13.09%, see rank | 12.50% | 12.29% |
| 65 to 74 years | 19,604 | 7.90%, see rank | 7.33% | 7.64% |
| 75 to 84 | 9,667 | 3.90%, see rank | 3.88% | 4.25% |
| 85 years and over | 4,252 | 1.71%, see rank | 1.77% | 1.85% |
US Census 2010 data
Total population: 244,826
Median Age (
see rank)
| Harford County | 39.40 years old |
| Maryland | 38.00 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Harford County | 38.10 years old |
| Maryland | 36.40 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Harford County | 40.60 years old |
| Maryland | 39.30 years old |
| U.S. | 38.50 years old |
| | Harford County | % of the Total Population | Maryland | U.S. |
| Under 5 years | 14,982 | 6.12%, see rank | 6.31% | 6.54% |
| 5 to 9 years | 16,345 | 6.68%, see rank | 6.35% | 6.59% |
| 10 to 14 years | 18,006 | 7.35%, see rank | 6.56% | 6.70% |
| 15 to 19 years | 17,343 | 7.08%, see rank | 7.04% | 7.14% |
| 20 to 24 years | 13,906 | 5.68%, see rank | 6.82% | 6.99% |
| 25 to 34 years | 28,206 | 11.52%, see rank | 13.20% | 13.30% |
| 35 to 44 years | 34,050 | 13.91%, see rank | 13.78% | 13.30% |
| 45 to 54 years | 40,839 | 16.68%, see rank | 15.63% | 14.58% |
| 55 to 64 years | 30,585 | 12.49%, see rank | 12.05% | 11.82% |
| 65 to 74 years | 17,396 | 7.11%, see rank | 6.69% | 7.03% |
| 75 to 84 | 9,596 | 3.92%, see rank | 3.87% | 4.23% |
| 85 years and over | 3,572 | 1.46%, see rank | 1.70% | 1.78% |
ACS 2008-2012 data
Total population: 245,396
Median Age (
see rank)
| Harford County | 39.50 years old |
| Maryland | 37.90 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| Harford County | 38.20 years old |
| Maryland | 36.30 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| Harford County | 40.70 years old |
| Maryland | 39.30 years old |
| U.S. | 38.50 years old |
| | Harford County | % of the Total Population | Maryland | U.S. |
| Under 5 years | 14,857 | 6.05%, see rank | 6.31% | 6.51% |
| 5 to 9 years | 16,632 | 6.78%, see rank | 6.30% | 6.57% |
| 10 to 14 years | 17,560 | 7.16%, see rank | 6.57% | 6.68% |
| 15 to 19 years | 17,043 | 6.95%, see rank | 7.01% | 7.09% |
| 20 to 24 years | 14,381 | 5.86%, see rank | 6.83% | 7.04% |
| 25 to 34 years | 28,557 | 11.64%, see rank | 13.25% | 13.32% |
| 35 to 44 years | 34,212 | 13.94%, see rank | 13.82% | 13.34% |
| 45 to 54 years | 40,437 | 16.48%, see rank | 15.46% | 14.44% |
| 55 to 64 years | 30,745 | 12.53%, see rank | 12.07% | 11.84% |
| 65 to 74 years | 17,695 | 7.21%, see rank | 6.78% | 7.12% |
| 75 to 84 | 9,619 | 3.92%, see rank | 3.89% | 4.25% |
| 85 years and over | 3,658 | 1.49%, see rank | 1.70% | 1.78% |
ACS 2006-2010 data
Total population: 242,888
Median Age (
see rank)
| Harford County | 38.70 years old |
| Maryland | 37.60 years old |
| U.S. | 36.90 years old |
Median Age, Male (
see rank)
| Harford County | 37.40 years old |
| Maryland | 36.10 years old |
| U.S. | 35.60 years old |
Median Age, Female (
see rank)
| Harford County | 39.80 years old |
| Maryland | 38.90 years old |
| U.S. | 38.10 years old |
| | Harford County | % of the Total Population | Maryland | U.S. |
| Under 5 years | 15,219 | 6.27%, see rank | 6.41% | 6.62% |
| 5 to 9 years | 16,622 | 6.84%, see rank | 6.42% | 6.62% |
| 10 to 14 years | 18,312 | 7.54%, see rank | 6.71% | 6.79% |
| 15 to 19 years | 17,370 | 7.15%, see rank | 7.23% | 7.28% |
| 20 to 24 years | 13,873 | 5.71%, see rank | 6.70% | 6.98% |
| 25 to 34 years | 27,625 | 11.37%, see rank | 12.99% | 13.22% |
| 35 to 44 years | 36,540 | 15.04%, see rank | 14.62% | 13.89% |
| 45 to 54 years | 39,668 | 16.33%, see rank | 15.49% | 14.57% |
| 55 to 64 years | 28,820 | 11.87%, see rank | 11.53% | 11.28% |
| 65 to 74 years | 16,240 | 6.69%, see rank | 6.36% | 6.74% |
| 75 to 84 | 9,547 | 3.93%, see rank | 3.96% | 4.30% |
| 85 years and over | 3,052 | 1.26%, see rank | 1.57% | 1.70% |
ACS 2005-2009 data
Total population: 240,297
Median Age (
see rank)
| Harford County | 38.30 years old |
| Maryland | 37.30 years old |
| U.S. | 36.50 years old |
Median Age, Male (
see rank)
| Harford County | 37.10 years old |
| Maryland | 35.80 years old |
| U.S. | 35.20 years old |
Median Age, Female (
see rank)
| Harford County | 39.20 years old |
| Maryland | 38.60 years old |
| U.S. | 37.90 years old |
| | Harford County | % of the Total Population | Maryland | U.S. |
| Under 5 years | 15,263 | 6.35%, see rank | 6.68% | 6.92% |
| 5 to 9 years | 16,456 | 6.85%, see rank | 6.40% | 6.59% |
| 10 to 14 years | 18,310 | 7.62%, see rank | 6.81% | 6.83% |
| 15 to 19 years | 17,143 | 7.13%, see rank | 7.19% | 7.15% |
| 20 to 24 years | 14,190 | 5.91%, see rank | 6.60% | 7.02% |
| 25 to 34 years | 27,610 | 11.49%, see rank | 13.09% | 13.42% |
| 35 to 44 years | 37,389 | 15.56%, see rank | 15.00% | 14.18% |
| 45 to 54 years | 38,897 | 16.19%, see rank | 15.36% | 14.48% |
| 55 to 64 years | 27,211 | 11.32%, see rank | 11.10% | 10.81% |
| 65 to 74 years | 15,919 | 6.62%, see rank | 6.29% | 6.50% |
| 75 to 84 | 9,191 | 3.82%, see rank | 3.96% | 4.40% |
| 85 years and over | 2,718 | 1.13%, see rank | 1.51% | 1.71% |
US Census 2000 data
Total population: 218,590
Median Age (
see rank)
| Harford County | 36.20 years old |
| Maryland | 36.00 years old |
| U.S. | 35.30 years old |
Median Age, Male (
see rank)
| Harford County | 35.50 years old |
| Maryland | 34.90 years old |
| U.S. | 34.00 years old |
Median Age, Female (
see rank)
| Harford County | 36.80 years old |
| Maryland | 37.00 years old |
| U.S. | 36.50 years old |
| | Harford County | % of the Total Population | Maryland | U.S. |
| Under 5 years | 15,776 | 7.22%, see rank | 6.67% | 6.81% |
| 5 to 9 years | 17,476 | 7.99%, see rank | 7.39% | 7.30% |
| 10 to 14 years | 17,861 | 8.17%, see rank | 7.40% | 7.29% |
| 15 to 19 years | 14,708 | 6.73%, see rank | 6.72% | 7.18% |
| 20 to 24 years | 9,911 | 4.53%, see rank | 5.93% | 6.74% |
| 25 to 34 years | 28,685 | 13.12%, see rank | 14.13% | 14.18% |
| 35 to 44 years | 40,303 | 18.44%, see rank | 17.30% | 16.04% |
| 45 to 54 years | 31,998 | 14.64%, see rank | 14.26% | 13.39% |
| 55 to 64 years | 19,712 | 9.02%, see rank | 8.88% | 8.63% |
| 65 to 74 years | 12,906 | 5.90%, see rank | 6.07% | 6.54% |
| 75 to 84 | 7,366 | 3.37%, see rank | 3.99% | 4.39% |
| 85 years and over | 1,888 | 0.86%, see rank | 1.26% | 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.
