91731 Zip Code Historical House Amount of Units in Structure Data
ACS 2010-2014 data
| | 91731 Zip Code | California | U.S. |
| Total Housing Units | 9,095, 100% | 13,781,929 | 132,741,033 |
| 1-unit, Detached | 4,718, 51.87%, see rank | 58.17% | 61.65% |
| 1-unit, Attached | 611, 6.72%, see rank | 6.97% | 5.82% |
| 2 Units | 150, 1.65%, see rank | 2.54% | 3.75% |
| 3 or 4 Units | 403, 4.43%, see rank | 5.54% | 4.43% |
| 5 to 9 Units | 426, 4.68%, see rank | 6.12% | 4.78% |
| 10 or More Units | 2,411, 26.51%, see rank | 16.79% | 13.08% |
| Mobile Home, Boat, RV, Van, etc. | 376, 4.13%, see rank | 3.88% | 6.49% |
ACS 2008-2012 data
| | 91731 Zip Code | California | U.S. |
| Total Housing Units | 8,425, 100% | 13,667,226 | 131,642,457 |
| 1-unit, Detached | 4,319, 51.26%, see rank | 58.16% | 61.70% |
| 1-unit, Attached | 721, 8.56%, see rank | 7.02% | 5.79% |
| 2 Units | 111, 1.32%, see rank | 2.56% | 3.80% |
| 3 or 4 Units | 335, 3.98%, see rank | 5.54% | 4.44% |
| 5 to 9 Units | 365, 4.33%, see rank | 6.07% | 4.78% |
| 10 or More Units | 2,312, 27.44%, see rank | 16.70% | 12.89% |
| Mobile Home, Boat, RV, Van, etc. | 262, 3.11%, see rank | 3.94% | 6.60% |
US Census 2000 data
| | 91731 Zip Code | California | U.S. |
| Total Housing Units | 7,663, 100% | 12,214,549 | 115,904,641 |
| 1-unit, Detached | 3,881, 50.65%, see rank | 56.35% | 60.28% |
| 1-unit, Attached | 687, 8.97%, see rank | 7.63% | 5.56% |
| 2 Units | 159, 2.07%, see rank | 2.68% | 4.31% |
| 3 or 4 Units | 350, 4.57%, see rank | 5.71% | 4.74% |
| 5 to 9 Units | 347, 4.53%, see rank | 5.92% | 4.67% |
| 10 or More Units | 1,866, 24.35%, see rank | 17.04% | 12.64% |
| Mobile Home, Boat, RV, Van, etc. | 373, 4.87%, see rank | 4.66% | 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.
