21204 Zip Code Historical Age Data
ACS 2010-2014 data
Total population: 20,269
Median Age (
see rank)
| 21204 Zip Code | 36.70 years old |
| Maryland | 38.10 years old |
| U.S. | 37.40 years old |
Median Age, Male (
see rank)
| 21204 Zip Code | 37.90 years old |
| Maryland | 36.50 years old |
| U.S. | 36.10 years old |
Median Age, Female (
see rank)
| 21204 Zip Code | 35.40 years old |
| Maryland | 39.60 years old |
| U.S. | 38.80 years old |
| | 21204 Zip Code | % of the Total Population | Maryland | U.S. |
| Under 5 years | 673 | 3.32%, see rank | 6.24% | 6.36% |
| 5 to 9 years | 768 | 3.79%, see rank | 6.30% | 6.51% |
| 10 to 14 years | 918 | 4.53%, see rank | 6.41% | 6.59% |
| 15 to 19 years | 2,074 | 10.23%, see rank | 6.73% | 6.85% |
| 20 to 24 years | 3,063 | 15.11%, see rank | 6.84% | 7.13% |
| 25 to 34 years | 2,325 | 11.47%, see rank | 13.60% | 13.47% |
| 35 to 44 years | 2,224 | 10.97%, see rank | 13.23% | 12.96% |
| 45 to 54 years | 2,501 | 12.34%, see rank | 15.18% | 14.09% |
| 55 to 64 years | 2,271 | 11.20%, see rank | 12.50% | 12.29% |
| 65 to 74 years | 1,417 | 6.99%, see rank | 7.33% | 7.64% |
| 75 to 84 | 1,145 | 5.65%, see rank | 3.88% | 4.25% |
| 85 years and over | 890 | 4.39%, see rank | 1.77% | 1.85% |
US Census 2010 data
Total population: 20,253
Median Age (
see rank)
| 21204 Zip Code | 34.50 years old |
| Maryland | 38.00 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| 21204 Zip Code | 31.80 years old |
| Maryland | 36.40 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| 21204 Zip Code | 37.70 years old |
| Maryland | 39.30 years old |
| U.S. | 38.50 years old |
| | 21204 Zip Code | % of the Total Population | Maryland | U.S. |
| Under 5 years | 661 | 3.26%, see rank | 6.31% | 6.54% |
| 5 to 9 years | 814 | 4.02%, see rank | 6.35% | 6.59% |
| 10 to 14 years | 876 | 4.33%, see rank | 6.56% | 6.70% |
| 15 to 19 years | 1,821 | 8.99%, see rank | 7.04% | 7.14% |
| 20 to 24 years | 3,992 | 19.71%, see rank | 6.82% | 6.99% |
| 25 to 34 years | 2,044 | 10.09%, see rank | 13.20% | 13.30% |
| 35 to 44 years | 1,943 | 9.59%, see rank | 13.78% | 13.30% |
| 45 to 54 years | 2,206 | 10.89%, see rank | 15.63% | 14.58% |
| 55 to 64 years | 2,022 | 9.98%, see rank | 12.05% | 11.82% |
| 65 to 74 years | 1,274 | 6.29%, see rank | 6.69% | 7.03% |
| 75 to 84 | 1,424 | 7.03%, see rank | 3.87% | 4.23% |
| 85 years and over | 1,176 | 5.81%, see rank | 1.70% | 1.78% |
ACS 2008-2012 data
Total population: 19,930
Median Age (
see rank)
| 21204 Zip Code | 37.20 years old |
| Maryland | 37.90 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| 21204 Zip Code | 35.20 years old |
| Maryland | 36.30 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| 21204 Zip Code | 38.10 years old |
| Maryland | 39.30 years old |
| U.S. | 38.50 years old |
| | 21204 Zip Code | % of the Total Population | Maryland | U.S. |
| Under 5 years | 667 | 3.35%, see rank | 6.31% | 6.51% |
| 5 to 9 years | 862 | 4.33%, see rank | 6.30% | 6.57% |
| 10 to 14 years | 954 | 4.79%, see rank | 6.57% | 6.68% |
| 15 to 19 years | 2,107 | 10.57%, see rank | 7.01% | 7.09% |
| 20 to 24 years | 3,101 | 15.56%, see rank | 6.83% | 7.04% |
| 25 to 34 years | 2,001 | 10.04%, see rank | 13.25% | 13.32% |
| 35 to 44 years | 2,154 | 10.81%, see rank | 13.82% | 13.34% |
| 45 to 54 years | 2,398 | 12.03%, see rank | 15.46% | 14.44% |
| 55 to 64 years | 1,933 | 9.70%, see rank | 12.07% | 11.84% |
| 65 to 74 years | 1,298 | 6.51%, see rank | 6.78% | 7.12% |
| 75 to 84 | 1,399 | 7.02%, see rank | 3.89% | 4.25% |
| 85 years and over | 1,056 | 5.30%, see rank | 1.70% | 1.78% |
US Census 2000 data
Total population: 20,157
Median Age (
see rank)
| 21204 Zip Code | 33.30 years old |
| Maryland | 36.00 years old |
| U.S. | 35.30 years old |
Median Age, Male (
see rank)
| 21204 Zip Code | 31.30 years old |
| Maryland | 34.90 years old |
| U.S. | 34.00 years old |
Median Age, Female (
see rank)
| 21204 Zip Code | 35.60 years old |
| Maryland | 37.00 years old |
| U.S. | 36.50 years old |
| | 21204 Zip Code | % of the Total Population | Maryland | U.S. |
| Under 5 years | 683 | 3.39%, see rank | 6.67% | 6.81% |
| 5 to 9 years | 741 | 3.68%, see rank | 7.39% | 7.30% |
| 10 to 14 years | 803 | 3.98%, see rank | 7.40% | 7.29% |
| 15 to 19 years | 3,000 | 14.88%, see rank | 6.72% | 7.18% |
| 20 to 24 years | 3,356 | 16.65%, see rank | 5.93% | 6.74% |
| 25 to 34 years | 1,833 | 9.09%, see rank | 14.13% | 14.18% |
| 35 to 44 years | 2,223 | 11.03%, see rank | 17.30% | 16.04% |
| 45 to 54 years | 2,158 | 10.71%, see rank | 14.26% | 13.39% |
| 55 to 64 years | 1,447 | 7.18%, see rank | 8.88% | 8.63% |
| 65 to 74 years | 1,592 | 7.90%, see rank | 6.07% | 6.54% |
| 75 to 84 | 1,579 | 7.83%, see rank | 3.99% | 4.39% |
| 85 years and over | 742 | 3.68%, 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.
