Baltimore County Historical House Amount of Units in Structure Data
ACS 2010-2014 data
| | Baltimore County | Maryland | U.S. |
| Total Housing Units | 336,281, 100% | 2,399,375 | 132,741,033 |
| 1-unit, Detached | 158,074, 47.01%, see rank | 51.72% | 61.65% |
| 1-unit, Attached | 82,016, 24.39%, see rank | 21.19% | 5.82% |
| 2 Units | 3,716, 1.11%, see rank | 1.60% | 3.75% |
| 3 or 4 Units | 6,517, 1.94%, see rank | 2.20% | 4.43% |
| 5 to 9 Units | 21,215, 6.31%, see rank | 4.94% | 4.78% |
| 10 or More Units | 61,813, 18.38%, see rank | 16.70% | 13.08% |
| Mobile Home, Boat, RV, Van, etc. | 2,930, 0.87%, see rank | 1.63% | 6.49% |
ACS 2008-2012 data
| | Baltimore County | Maryland | U.S. |
| Total Housing Units | 335,288, 100% | 2,378,932 | 131,642,457 |
| 1-unit, Detached | 158,052, 47.14%, see rank | 51.71% | 61.70% |
| 1-unit, Attached | 80,235, 23.93%, see rank | 21.10% | 5.79% |
| 2 Units | 4,276, 1.28%, see rank | 1.68% | 3.80% |
| 3 or 4 Units | 6,409, 1.91%, see rank | 2.22% | 4.44% |
| 5 to 9 Units | 21,322, 6.36%, see rank | 5.02% | 4.78% |
| 10 or More Units | 61,826, 18.44%, see rank | 16.53% | 12.89% |
| Mobile Home, Boat, RV, Van, etc. | 3,168, 0.94%, see rank | 1.74% | 6.60% |
ACS 2006-2010 data
| | Baltimore County | Maryland | U.S. |
| Total Housing Units | 333,175, 100% | 2,354,870 | 130,038,080 |
| 1-unit, Detached | 156,130, 46.86%, see rank | 51.58% | 61.62% |
| 1-unit, Attached | 79,728, 23.93%, see rank | 21.09% | 5.74% |
| 2 Units | 4,403, 1.32%, see rank | 1.76% | 3.88% |
| 3 or 4 Units | 7,017, 2.11%, see rank | 2.37% | 4.47% |
| 5 to 9 Units | 22,960, 6.89%, see rank | 5.26% | 4.84% |
| 10 or More Units | 59,651, 17.90%, see rank | 16.21% | 12.68% |
| Mobile Home, Boat, RV, Van, etc. | 3,286, 0.99%, see rank | 1.73% | 6.76% |
ACS 2005-2009 data
| | Baltimore County | Maryland | U.S. |
| Total Housing Units | 327,067, 100% | 2,313,193 | 127,699,712 |
| 1-unit, Detached | 153,816, 47.03%, see rank | 51.87% | 61.57% |
| 1-unit, Attached | 78,691, 24.06%, see rank | 21.04% | 5.70% |
| 2 Units | 4,519, 1.38%, see rank | 1.82% | 3.94% |
| 3 or 4 Units | 6,508, 1.99%, see rank | 2.41% | 4.51% |
| 5 to 9 Units | 22,395, 6.85%, see rank | 5.36% | 4.87% |
| 10 or More Units | 57,700, 17.64%, see rank | 15.76% | 12.58% |
| Mobile Home, Boat, RV, Van, etc. | 3,438, 1.05%, see rank | 1.76% | 6.85% |
US Census 2000 data
| | Baltimore County | Maryland | U.S. |
| Total Housing Units | 313,734, 100% | 2,145,283 | 115,904,641 |
| 1-unit, Detached | 147,499, 47.01%, see rank | 51.17% | 60.28% |
| 1-unit, Attached | 76,784, 24.47%, see rank | 21.04% | 5.56% |
| 2 Units | 5,105, 1.63%, see rank | 2.13% | 4.31% |
| 3 or 4 Units | 7,330, 2.34%, see rank | 2.94% | 4.74% |
| 5 to 9 Units | 21,849, 6.96%, see rank | 5.60% | 4.67% |
| 10 or More Units | 52,598, 16.77%, see rank | 15.15% | 12.64% |
| Mobile Home, Boat, RV, Van, etc. | 2,569, 0.82%, 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.
