21804 Zip Code Historical House Amount of Units in Structure Data
ACS 2010-2014 data
| | 21804 Zip Code | Maryland | U.S. |
| Total Housing Units | 16,092, 100% | 2,399,375 | 132,741,033 |
| 1-unit, Detached | 9,525, 59.19%, see rank | 51.72% | 61.65% |
| 1-unit, Attached | 983, 6.11%, see rank | 21.19% | 5.82% |
| 2 Units | 324, 2.01%, see rank | 1.60% | 3.75% |
| 3 or 4 Units | 339, 2.11%, see rank | 2.20% | 4.43% |
| 5 to 9 Units | 1,002, 6.23%, see rank | 4.94% | 4.78% |
| 10 or More Units | 3,183, 19.78%, see rank | 16.70% | 13.08% |
| Mobile Home, Boat, RV, Van, etc. | 736, 4.57%, see rank | 1.63% | 6.49% |
ACS 2008-2012 data
| | 21804 Zip Code | Maryland | U.S. |
| Total Housing Units | 15,993, 100% | 2,378,932 | 131,642,457 |
| 1-unit, Detached | 9,412, 58.85%, see rank | 51.71% | 61.70% |
| 1-unit, Attached | 1,052, 6.58%, see rank | 21.10% | 5.79% |
| 2 Units | 422, 2.64%, see rank | 1.68% | 3.80% |
| 3 or 4 Units | 444, 2.78%, see rank | 2.22% | 4.44% |
| 5 to 9 Units | 906, 5.66%, see rank | 5.02% | 4.78% |
| 10 or More Units | 3,008, 18.81%, see rank | 16.53% | 12.89% |
| Mobile Home, Boat, RV, Van, etc. | 749, 4.68%, see rank | 1.74% | 6.60% |
US Census 2000 data
| | 21804 Zip Code | Maryland | U.S. |
| Total Housing Units | 13,119, 100% | 2,145,283 | 115,904,641 |
| 1-unit, Detached | 9,354, 71.30%, see rank | 51.17% | 60.28% |
| 1-unit, Attached | 722, 5.50%, see rank | 21.04% | 5.56% |
| 2 Units | 272, 2.07%, see rank | 2.13% | 4.31% |
| 3 or 4 Units | 212, 1.62%, see rank | 2.94% | 4.74% |
| 5 to 9 Units | 647, 4.93%, see rank | 5.60% | 4.67% |
| 10 or More Units | 1,445, 11.01%, see rank | 15.15% | 12.64% |
| Mobile Home, Boat, RV, Van, etc. | 467, 3.56%, see rank | 1.96% | 7.80% |
* 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.
