Rockville, MD Historical House Amount of Units in Structure Data
ACS 2010-2014 data
| | Rockville, MD | Maryland | U.S. |
| Total Housing Units | 25,656, 100% | 2,399,375 | 132,741,033 |
| 1-unit, Detached | 11,613, 45.26%, see rank | 51.72% | 61.65% |
| 1-unit, Attached | 4,303, 16.77%, see rank | 21.19% | 5.82% |
| 2 Units | 122, 0.48%, see rank | 1.60% | 3.75% |
| 3 or 4 Units | 418, 1.63%, see rank | 2.20% | 4.43% |
| 5 to 9 Units | 833, 3.25%, see rank | 4.94% | 4.78% |
| 10 or More Units | 8,334, 32.48%, see rank | 16.70% | 13.08% |
| Mobile Home, Boat, RV, Van, etc. | 33, 0.13%, see rank | 1.63% | 6.49% |
ACS 2008-2012 data
| | Rockville, MD | Maryland | U.S. |
| Total Housing Units | 25,476, 100% | 2,378,932 | 131,642,457 |
| 1-unit, Detached | 11,827, 46.42%, see rank | 51.71% | 61.70% |
| 1-unit, Attached | 4,193, 16.46%, see rank | 21.10% | 5.79% |
| 2 Units | 125, 0.49%, see rank | 1.68% | 3.80% |
| 3 or 4 Units | 370, 1.45%, see rank | 2.22% | 4.44% |
| 5 to 9 Units | 1,009, 3.96%, see rank | 5.02% | 4.78% |
| 10 or More Units | 7,888, 30.96%, see rank | 16.53% | 12.89% |
| Mobile Home, Boat, RV, Van, etc. | 64, 0.25%, see rank | 1.74% | 6.60% |
ACS 2006-2010 data
| | Rockville, MD | Maryland | U.S. |
| Total Housing Units | 24,445, 100% | 2,354,870 | 130,038,080 |
| 1-unit, Detached | 11,647, 47.65%, see rank | 51.58% | 61.62% |
| 1-unit, Attached | 4,268, 17.46%, see rank | 21.09% | 5.74% |
| 2 Units | 84, 0.34%, see rank | 1.76% | 3.88% |
| 3 or 4 Units | 424, 1.73%, see rank | 2.37% | 4.47% |
| 5 to 9 Units | 1,034, 4.23%, see rank | 5.26% | 4.84% |
| 10 or More Units | 6,931, 28.35%, see rank | 16.21% | 12.68% |
| Mobile Home, Boat, RV, Van, etc. | 57, 0.23%, see rank | 1.73% | 6.76% |
ACS 2005-2009 data
| | Rockville, MD | Maryland | U.S. |
| Total Housing Units | 24,328, 100% | 2,313,193 | 127,699,712 |
| 1-unit, Detached | 12,063, 49.58%, see rank | 51.87% | 61.57% |
| 1-unit, Attached | 4,280, 17.59%, see rank | 21.04% | 5.70% |
| 2 Units | 80, 0.33%, see rank | 1.82% | 3.94% |
| 3 or 4 Units | 403, 1.66%, see rank | 2.41% | 4.51% |
| 5 to 9 Units | 1,026, 4.22%, see rank | 5.36% | 4.87% |
| 10 or More Units | 6,421, 26.39%, see rank | 15.76% | 12.58% |
| Mobile Home, Boat, RV, Van, etc. | 55, 0.23%, see rank | 1.76% | 6.85% |
US Census 2000 data
| | Rockville, MD | Maryland | U.S. |
| Total Housing Units | 17,794, 100% | 2,145,283 | 115,904,641 |
| 1-unit, Detached | 10,487, 58.94%, see rank | 51.17% | 60.28% |
| 1-unit, Attached | 2,755, 15.48%, see rank | 21.04% | 5.56% |
| 2 Units | 94, 0.53%, see rank | 2.13% | 4.31% |
| 3 or 4 Units | 268, 1.51%, see rank | 2.94% | 4.74% |
| 5 to 9 Units | 674, 3.79%, see rank | 5.60% | 4.67% |
| 10 or More Units | 3,490, 19.61%, see rank | 15.15% | 12.64% |
| Mobile Home, Boat, RV, Van, etc. | 26, 0.15%, 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.
