Boulder County Historical Amount of Rooms in a House Data
ACS 2010-2014 data
| | Boulder County | Colorado | U.S. |
| Total Housing Units | 128,600, 100% | 2,238,624 | 132,741,033 |
| 1 Room | 2,390, 1.86%, see rank | 1.78% | 1.95% |
| 2 Rooms | 5,331, 4.15%, see rank | 3.54% | 2.48% |
| 3 Rooms | 12,989, 10.10%, see rank | 10.16% | 9.13% |
| 4 Rooms | 19,626, 15.26%, see rank | 15.41% | 16.60% |
| 5 Rooms | 18,334, 14.26%, see rank | 16.50% | 20.41% |
| 6 Rooms | 18,030, 14.02%, see rank | 14.64% | 18.06% |
| 7 Rooms | 14,664, 11.40%, see rank | 11.92% | 12.27% |
| 8 Rooms | 13,459, 10.47%, see rank | 9.79% | 8.48% |
| 9 Rooms or More | 23,777, 18.49%, see rank | 16.25% | 10.60% |
| Median Rooms | 5.80, see rank | 5.70 | 5.50 |
ACS 2008-2012 data
| | Boulder County | Colorado | U.S. |
| Total Housing Units | 127,105, 100% | 2,211,615 | 131,642,457 |
| 1 Room | 2,281, 1.79%, see rank | 1.66% | 1.95% |
| 2 Rooms | 5,259, 4.14%, see rank | 3.26% | 2.36% |
| 3 Rooms | 12,893, 10.14%, see rank | 9.93% | 8.97% |
| 4 Rooms | 19,771, 15.55%, see rank | 15.47% | 16.57% |
| 5 Rooms | 17,453, 13.73%, see rank | 16.75% | 20.41% |
| 6 Rooms | 18,064, 14.21%, see rank | 14.89% | 18.25% |
| 7 Rooms | 14,192, 11.17%, see rank | 12.20% | 12.38% |
| 8 Rooms | 13,321, 10.48%, see rank | 9.86% | 8.59% |
| 9 Rooms or More | 23,871, 18.78%, see rank | 15.98% | 10.52% |
| Median Rooms | 5.80, see rank | 5.70 | 5.50 |
ACS 2006-2010 data
| | Boulder County | Colorado | U.S. |
| Total Housing Units | 125,768, 100% | 2,176,600 | 130,038,080 |
| 1 Room | 2,035, 1.62%, see rank | 1.38% | 1.59% |
| 2 Rooms | 5,744, 4.57%, see rank | 3.31% | 2.62% |
| 3 Rooms | 12,598, 10.02%, see rank | 9.81% | 9.02% |
| 4 Rooms | 19,061, 15.16%, see rank | 15.60% | 16.85% |
| 5 Rooms | 18,234, 14.50%, see rank | 17.36% | 20.93% |
| 6 Rooms | 17,325, 13.78%, see rank | 15.05% | 18.56% |
| 7 Rooms | 14,586, 11.60%, see rank | 12.55% | 12.38% |
| 8 Rooms | 13,029, 10.36%, see rank | 9.91% | 8.39% |
| 9 Rooms or More | 23,156, 18.41%, see rank | 15.03% | 9.65% |
| Median Rooms | 5.80, see rank | 5.70 | 5.50 |
ACS 2005-2009 data
| | Boulder County | Colorado | U.S. |
| Total Housing Units | 123,355, 100% | 2,119,839 | 127,699,712 |
| 1 Room | 1,842, 1.49%, see rank | 1.19% | 1.39% |
| 2 Rooms | 5,688, 4.61%, see rank | 3.45% | 2.78% |
| 3 Rooms | 11,426, 9.26%, see rank | 9.60% | 9.07% |
| 4 Rooms | 18,913, 15.33%, see rank | 15.89% | 17.03% |
| 5 Rooms | 17,768, 14.40%, see rank | 17.44% | 21.24% |
| 6 Rooms | 17,602, 14.27%, see rank | 15.24% | 18.70% |
| 7 Rooms | 15,061, 12.21%, see rank | 12.74% | 12.36% |
| 8 Rooms | 12,770, 10.35%, see rank | 9.94% | 8.26% |
| 9 Rooms or More | 22,285, 18.07%, see rank | 14.51% | 9.16% |
| Median Rooms | 5.80, see rank | 5.70 | 5.40 |
US Census 2000 data
| | Boulder County | Colorado | U.S. |
| Total Housing Units | 119,900, 100% | 1,808,037 | 115,904,641 |
| 1 Room | 2,848, 2.38%, see rank | 2.24% | 2.20% |
| 2 Rooms | 7,745, 6.46%, see rank | 5.45% | 4.81% |
| 3 Rooms | 11,841, 9.88%, see rank | 9.98% | 9.84% |
| 4 Rooms | 16,733, 13.96%, see rank | 15.25% | 15.97% |
| 5 Rooms | 16,266, 13.57%, see rank | 16.61% | 20.89% |
| 6 Rooms | 16,993, 14.17%, see rank | 14.78% | 18.45% |
| 7 Rooms | 15,611, 13.02%, see rank | 12.39% | 12.06% |
| 8 Rooms | 13,174, 10.99%, see rank | 10.24% | 8.06% |
| 9 Rooms or More | 18,689, 15.59%, see rank | 13.06% | 7.70% |
| Median Rooms | 5.80, see rank | 5.50 | 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.
