21030 Zip Code Historical House Amount of Units in Structure Data
ACS 2010-2014 data
| | 21030 Zip Code | Maryland | U.S. |
| Total Housing Units | 11,116, 100% | 2,399,375 | 132,741,033 |
| 1-unit, Detached | 3,956, 35.59%, see rank | 51.72% | 61.65% |
| 1-unit, Attached | 1,482, 13.33%, see rank | 21.19% | 5.82% |
| 2 Units | 52, 0.47%, see rank | 1.60% | 3.75% |
| 3 or 4 Units | 102, 0.92%, see rank | 2.20% | 4.43% |
| 5 to 9 Units | 1,236, 11.12%, see rank | 4.94% | 4.78% |
| 10 or More Units | 4,264, 38.36%, see rank | 16.70% | 13.08% |
| Mobile Home, Boat, RV, Van, etc. | 24, 0.22%, see rank | 1.63% | 6.49% |
ACS 2008-2012 data
| | 21030 Zip Code | Maryland | U.S. |
| Total Housing Units | 11,008, 100% | 2,378,932 | 131,642,457 |
| 1-unit, Detached | 3,641, 33.08%, see rank | 51.71% | 61.70% |
| 1-unit, Attached | 1,360, 12.35%, see rank | 21.10% | 5.79% |
| 2 Units | 93, 0.84%, see rank | 1.68% | 3.80% |
| 3 or 4 Units | 144, 1.31%, see rank | 2.22% | 4.44% |
| 5 to 9 Units | 1,354, 12.30%, see rank | 5.02% | 4.78% |
| 10 or More Units | 4,358, 39.59%, see rank | 16.53% | 12.89% |
| Mobile Home, Boat, RV, Van, etc. | 58, 0.53%, see rank | 1.74% | 6.60% |
US Census 2000 data
| | 21030 Zip Code | Maryland | U.S. |
| Total Housing Units | 10,934, 100% | 2,145,283 | 115,904,641 |
| 1-unit, Detached | 3,598, 32.91%, see rank | 51.17% | 60.28% |
| 1-unit, Attached | 1,485, 13.58%, see rank | 21.04% | 5.56% |
| 2 Units | 61, 0.56%, see rank | 2.13% | 4.31% |
| 3 or 4 Units | 122, 1.12%, see rank | 2.94% | 4.74% |
| 5 to 9 Units | 1,246, 11.40%, see rank | 5.60% | 4.67% |
| 10 or More Units | 4,415, 40.38%, see rank | 15.15% | 12.64% |
| Mobile Home, Boat, RV, Van, etc. | 7, 0.06%, 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.
