21830 Zip Code Historical House Amount of Units in Structure Data
ACS 2010-2014 data
| | 21830 Zip Code | Maryland | U.S. |
| Total Housing Units | 1,398, 100% | 2,399,375 | 132,741,033 |
| 1-unit, Detached | 1,244, 88.98%, see rank | 51.72% | 61.65% |
| 1-unit, Attached | 15, 1.07%, see rank | 21.19% | 5.82% |
| 2 Units | 9, 0.64%, see rank | 1.60% | 3.75% |
| 3 or 4 Units | 3, 0.21%, see rank | 2.20% | 4.43% |
| 5 to 9 Units | 6, 0.43%, see rank | 4.94% | 4.78% |
| 10 or More Units | 17, 1.22%, see rank | 16.70% | 13.08% |
| Mobile Home, Boat, RV, Van, etc. | 104, 7.44%, see rank | 1.63% | 6.49% |
ACS 2008-2012 data
| | 21830 Zip Code | Maryland | U.S. |
| Total Housing Units | 1,355, 100% | 2,378,932 | 131,642,457 |
| 1-unit, Detached | 1,183, 87.31%, see rank | 51.71% | 61.70% |
| 1-unit, Attached | 13, 0.96%, see rank | 21.10% | 5.79% |
| 2 Units | 8, 0.59%, see rank | 1.68% | 3.80% |
| 3 or 4 Units | 6, 0.44%, see rank | 2.22% | 4.44% |
| 5 to 9 Units | 5, 0.37%, see rank | 5.02% | 4.78% |
| 10 or More Units | 15, 1.11%, see rank | 16.53% | 12.89% |
| Mobile Home, Boat, RV, Van, etc. | 125, 9.23%, see rank | 1.74% | 6.60% |
US Census 2000 data
| | 21830 Zip Code | Maryland | U.S. |
| Total Housing Units | 1,173, 100% | 2,145,283 | 115,904,641 |
| 1-unit, Detached | 1,039, 88.58%, see rank | 51.17% | 60.28% |
| 1-unit, Attached | 8, 0.68%, see rank | 21.04% | 5.56% |
| 2 Units | 1, 0.09%, see rank | 2.13% | 4.31% |
| 3 or 4 Units | 8, 0.68%, see rank | 2.94% | 4.74% |
| 5 to 9 Units | 13, 1.11%, see rank | 5.60% | 4.67% |
| 10 or More Units | 12, 1.02%, see rank | 15.15% | 12.64% |
| Mobile Home, Boat, RV, Van, etc. | 92, 7.84%, 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.
