Washington County Historical Amount of Rooms in a House Data
ACS 2010-2014 data
| | Washington County | Oregon | U.S. |
| Total Housing Units | 215,140, 100% | 1,685,814 | 132,741,033 |
| 1 Room | 1,826, 0.85%, see rank | 2.21% | 1.95% |
| 2 Rooms | 6,507, 3.02%, see rank | 3.46% | 2.48% |
| 3 Rooms | 20,340, 9.45%, see rank | 8.58% | 9.13% |
| 4 Rooms | 37,871, 17.60%, see rank | 17.74% | 16.60% |
| 5 Rooms | 40,083, 18.63%, see rank | 20.85% | 20.41% |
| 6 Rooms | 34,388, 15.98%, see rank | 17.61% | 18.06% |
| 7 Rooms | 27,109, 12.60%, see rank | 11.97% | 12.27% |
| 8 Rooms | 19,342, 8.99%, see rank | 7.73% | 8.48% |
| 9 Rooms or More | 27,674, 12.86%, see rank | 9.85% | 10.60% |
| Median Rooms | 5.50, see rank | 5.40 | 5.50 |
ACS 2008-2012 data
| | Washington County | Oregon | U.S. |
| Total Housing Units | 212,386, 100% | 1,673,593 | 131,642,457 |
| 1 Room | 1,830, 0.86%, see rank | 2.14% | 1.95% |
| 2 Rooms | 5,448, 2.57%, see rank | 3.32% | 2.36% |
| 3 Rooms | 18,859, 8.88%, see rank | 8.25% | 8.97% |
| 4 Rooms | 37,108, 17.47%, see rank | 17.68% | 16.57% |
| 5 Rooms | 39,341, 18.52%, see rank | 20.66% | 20.41% |
| 6 Rooms | 35,328, 16.63%, see rank | 18.13% | 18.25% |
| 7 Rooms | 27,215, 12.81%, see rank | 12.17% | 12.38% |
| 8 Rooms | 19,654, 9.25%, see rank | 7.93% | 8.59% |
| 9 Rooms or More | 27,603, 13.00%, see rank | 9.72% | 10.52% |
| Median Rooms | 5.60, see rank | 5.40 | 5.50 |
ACS 2006-2010 data
| | Washington County | Oregon | U.S. |
| Total Housing Units | 208,773, 100% | 1,651,063 | 130,038,080 |
| 1 Room | 1,905, 0.91%, see rank | 1.94% | 1.59% |
| 2 Rooms | 5,702, 2.73%, see rank | 3.40% | 2.62% |
| 3 Rooms | 18,531, 8.88%, see rank | 8.25% | 9.02% |
| 4 Rooms | 36,547, 17.51%, see rank | 18.12% | 16.85% |
| 5 Rooms | 40,075, 19.20%, see rank | 20.88% | 20.93% |
| 6 Rooms | 34,504, 16.53%, see rank | 18.55% | 18.56% |
| 7 Rooms | 26,060, 12.48%, see rank | 12.19% | 12.38% |
| 8 Rooms | 19,830, 9.50%, see rank | 7.80% | 8.39% |
| 9 Rooms or More | 25,619, 12.27%, see rank | 8.87% | 9.65% |
| Median Rooms | 5.50, see rank | 5.40 | 5.50 |
ACS 2005-2009 data
| | Washington County | Oregon | U.S. |
| Total Housing Units | 203,503, 100% | 1,607,411 | 127,699,712 |
| 1 Room | 1,740, 0.86%, see rank | 1.81% | 1.39% |
| 2 Rooms | 5,916, 2.91%, see rank | 3.46% | 2.78% |
| 3 Rooms | 17,779, 8.74%, see rank | 8.18% | 9.07% |
| 4 Rooms | 37,631, 18.49%, see rank | 18.39% | 17.03% |
| 5 Rooms | 38,760, 19.05%, see rank | 21.27% | 21.24% |
| 6 Rooms | 32,885, 16.16%, see rank | 18.63% | 18.70% |
| 7 Rooms | 25,628, 12.59%, see rank | 12.20% | 12.36% |
| 8 Rooms | 19,300, 9.48%, see rank | 7.64% | 8.26% |
| 9 Rooms or More | 23,864, 11.73%, see rank | 8.43% | 9.16% |
| Median Rooms | 5.50, see rank | 5.40 | 5.40 |
US Census 2000 data
| | Washington County | Oregon | U.S. |
| Total Housing Units | 178,913, 100% | 1,452,709 | 115,904,641 |
| 1 Room | 3,334, 1.86%, see rank | 2.64% | 2.20% |
| 2 Rooms | 10,013, 5.60%, see rank | 5.34% | 4.81% |
| 3 Rooms | 17,183, 9.60%, see rank | 9.12% | 9.84% |
| 4 Rooms | 27,612, 15.43%, see rank | 16.71% | 15.97% |
| 5 Rooms | 29,693, 16.60%, see rank | 20.06% | 20.89% |
| 6 Rooms | 28,850, 16.13%, see rank | 18.45% | 18.45% |
| 7 Rooms | 23,986, 13.41%, see rank | 12.46% | 12.06% |
| 8 Rooms | 17,944, 10.03%, see rank | 7.62% | 8.06% |
| 9 Rooms or More | 20,298, 11.35%, see rank | 7.60% | 7.70% |
| Median Rooms | 5.60, see rank | 5.30 | 5.30 |
* 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.
