Sonoma County Historical Amount of Rooms in a House Data
ACS 2010-2014 data
| | Sonoma County | California | U.S. |
| Total Housing Units | 205,759, 100% | 13,781,929 | 132,741,033 |
| 1 Room | 4,252, 2.07%, see rank | 3.13% | 1.95% |
| 2 Rooms | 9,594, 4.66%, see rank | 3.93% | 2.48% |
| 3 Rooms | 19,480, 9.47%, see rank | 12.05% | 9.13% |
| 4 Rooms | 40,415, 19.64%, see rank | 19.24% | 16.60% |
| 5 Rooms | 46,848, 22.77%, see rank | 20.56% | 20.41% |
| 6 Rooms | 36,814, 17.89%, see rank | 16.99% | 18.06% |
| 7 Rooms | 23,552, 11.45%, see rank | 11.06% | 12.27% |
| 8 Rooms | 13,186, 6.41%, see rank | 6.58% | 8.48% |
| 9 Rooms or More | 11,618, 5.65%, see rank | 6.46% | 10.60% |
| Median Rooms | 5.10, see rank | 5.10 | 5.50 |
ACS 2008-2012 data
| | Sonoma County | California | U.S. |
| Total Housing Units | 204,247, 100% | 13,667,226 | 131,642,457 |
| 1 Room | 4,089, 2.00%, see rank | 3.17% | 1.95% |
| 2 Rooms | 7,997, 3.92%, see rank | 3.78% | 2.36% |
| 3 Rooms | 19,806, 9.70%, see rank | 11.88% | 8.97% |
| 4 Rooms | 39,156, 19.17%, see rank | 19.04% | 16.57% |
| 5 Rooms | 47,403, 23.21%, see rank | 20.50% | 20.41% |
| 6 Rooms | 37,293, 18.26%, see rank | 17.21% | 18.25% |
| 7 Rooms | 24,271, 11.88%, see rank | 11.27% | 12.38% |
| 8 Rooms | 13,284, 6.50%, see rank | 6.78% | 8.59% |
| 9 Rooms or More | 10,948, 5.36%, see rank | 6.38% | 10.52% |
| Median Rooms | 5.20, see rank | 5.10 | 5.50 |
ACS 2006-2010 data
| | Sonoma County | California | U.S. |
| Total Housing Units | 202,668, 100% | 13,552,624 | 130,038,080 |
| 1 Room | 3,326, 1.64%, see rank | 2.72% | 1.59% |
| 2 Rooms | 7,754, 3.83%, see rank | 4.35% | 2.62% |
| 3 Rooms | 18,568, 9.16%, see rank | 11.89% | 9.02% |
| 4 Rooms | 39,457, 19.47%, see rank | 19.02% | 16.85% |
| 5 Rooms | 46,845, 23.11%, see rank | 20.76% | 20.93% |
| 6 Rooms | 39,451, 19.47%, see rank | 17.56% | 18.56% |
| 7 Rooms | 24,444, 12.06%, see rank | 11.35% | 12.38% |
| 8 Rooms | 13,025, 6.43%, see rank | 6.63% | 8.39% |
| 9 Rooms or More | 9,798, 4.83%, see rank | 5.73% | 9.65% |
| Median Rooms | 5.20, see rank | 5.10 | 5.50 |
ACS 2005-2009 data
| | Sonoma County | California | U.S. |
| Total Housing Units | 196,952, 100% | 13,268,682 | 127,699,712 |
| 1 Room | 2,849, 1.45%, see rank | 2.41% | 1.39% |
| 2 Rooms | 7,421, 3.77%, see rank | 4.63% | 2.78% |
| 3 Rooms | 18,240, 9.26%, see rank | 11.98% | 9.07% |
| 4 Rooms | 38,166, 19.38%, see rank | 19.05% | 17.03% |
| 5 Rooms | 45,312, 23.01%, see rank | 20.98% | 21.24% |
| 6 Rooms | 38,243, 19.42%, see rank | 17.73% | 18.70% |
| 7 Rooms | 24,388, 12.38%, see rank | 11.32% | 12.36% |
| 8 Rooms | 13,041, 6.62%, see rank | 6.53% | 8.26% |
| 9 Rooms or More | 9,292, 4.72%, see rank | 5.37% | 9.16% |
| Median Rooms | 5.20, see rank | 5.10 | 5.40 |
US Census 2000 data
| | Sonoma County | California | U.S. |
| Total Housing Units | 183,153, 100% | 12,214,549 | 115,904,641 |
| 1 Room | 4,197, 2.29%, see rank | 5.01% | 2.20% |
| 2 Rooms | 10,826, 5.91%, see rank | 9.38% | 4.81% |
| 3 Rooms | 17,735, 9.68%, see rank | 13.85% | 9.84% |
| 4 Rooms | 32,028, 17.49%, see rank | 15.75% | 15.97% |
| 5 Rooms | 41,118, 22.45%, see rank | 18.95% | 20.89% |
| 6 Rooms | 34,530, 18.85%, see rank | 16.50% | 18.45% |
| 7 Rooms | 22,090, 12.06%, see rank | 10.33% | 12.06% |
| 8 Rooms | 12,708, 6.94%, see rank | 5.93% | 8.06% |
| 9 Rooms or More | 7,921, 4.32%, see rank | 4.31% | 7.70% |
| Median Rooms | 5.20, see rank | 4.80 | 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.
