21678 Zip Code Historical House Amount of Units in Structure Data
ACS 2010-2014 data
| | 21678 Zip Code | Maryland | U.S. |
| Total Housing Units | 1,154, 100% | 2,399,375 | 132,741,033 |
| 1-unit, Detached | 1,097, 95.06%, see rank | 51.72% | 61.65% |
| 1-unit, Attached | 0, 0.00%, see rank | 21.19% | 5.82% |
| 2 Units | 21, 1.82%, see rank | 1.60% | 3.75% |
| 3 or 4 Units | 0, 0.00%, see rank | 2.20% | 4.43% |
| 5 to 9 Units | 0, 0.00%, see rank | 4.94% | 4.78% |
| 10 or More Units | 0, 0.00%, see rank | 16.70% | 13.08% |
| Mobile Home, Boat, RV, Van, etc. | 36, 3.12%, see rank | 1.63% | 6.49% |
ACS 2008-2012 data
| | 21678 Zip Code | Maryland | U.S. |
| Total Housing Units | 1,038, 100% | 2,378,932 | 131,642,457 |
| 1-unit, Detached | 969, 93.35%, see rank | 51.71% | 61.70% |
| 1-unit, Attached | 0, 0.00%, see rank | 21.10% | 5.79% |
| 2 Units | 0, 0.00%, see rank | 1.68% | 3.80% |
| 3 or 4 Units | 0, 0.00%, see rank | 2.22% | 4.44% |
| 5 to 9 Units | 0, 0.00%, see rank | 5.02% | 4.78% |
| 10 or More Units | 0, 0.00%, see rank | 16.53% | 12.89% |
| Mobile Home, Boat, RV, Van, etc. | 69, 6.65%, see rank | 1.74% | 6.60% |
US Census 2000 data
| | 21678 Zip Code | Maryland | U.S. |
| Total Housing Units | 1,029, 100% | 2,145,283 | 115,904,641 |
| 1-unit, Detached | 922, 89.60%, see rank | 51.17% | 60.28% |
| 1-unit, Attached | 7, 0.68%, see rank | 21.04% | 5.56% |
| 2 Units | 15, 1.46%, see rank | 2.13% | 4.31% |
| 3 or 4 Units | 6, 0.58%, see rank | 2.94% | 4.74% |
| 5 to 9 Units | 0, 0.00%, see rank | 5.60% | 4.67% |
| 10 or More Units | 0, 0.00%, see rank | 15.15% | 12.64% |
| Mobile Home, Boat, RV, Van, etc. | 79, 7.68%, 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.
