Placer County Historical Household and Family Data
ACS 2010-2014 data
Total population: 361,518
| Placer County | California | U.S. | |
| Total Households | 134,111, 100% | 12,617,280 | 116,211,092 |
| Average Household Size | 2.67, see rank | 2.95 | 2.63 |
| 1 Person Households | 31,736, 23.66%, see rank | 24.10% | 27.57% |
| 2 or More Person Households | 102,375, 76.34%, see rank | 75.90% | 72.43% |
| Family Households (Families) | 94,256, 70.28%, see rank | 68.69% | 66.22% |
| Average Family Size | 3.25, see rank | 3.67 | 3.32 |
| Married-Couple Family | 76,624, 57.13%, see rank | 49.11% | 48.42% |
| Nonfamily Households | 39,855, 29.72%, see rank | 31.31% | 33.78% |
US Census 2010 data
Total population: 348,432
| Placer County | California | U.S. | |
| Total Households | 132,627, 100% | 12,577,498 | 116,716,292 |
| Average Household Size | 2.60, see rank | 2.90 | 2.58 |
| 1 Person Households | 30,496, 22.99%, see rank | 23.29% | 26.74% |
| 2 or More Person Households | 102,131, 77.01%, see rank | 76.71% | 73.26% |
| Family Households (Families) | 93,536, 70.53%, see rank | 68.71% | 66.43% |
| Average Family Size | 3.07, see rank | 3.45 | 3.14 |
| Married-Couple Family | 75,509, 56.93%, see rank | 49.40% | 48.42% |
| Nonfamily Households | 39,091, 29.47%, see rank | 31.29% | 33.57% |
ACS 2008-2012 data
Total population: 350,074
| Placer County | California | U.S. | |
| Total Households | 131,775, 100% | 12,466,331 | 115,226,802 |
| Average Household Size | 2.63, see rank | 2.93 | 2.61 |
| 1 Person Households | 30,503, 23.15%, see rank | 24.31% | 27.45% |
| 2 or More Person Households | 101,272, 76.85%, see rank | 75.69% | 72.55% |
| Family Households (Families) | 93,404, 70.88%, see rank | 68.59% | 66.47% |
| Average Family Size | 3.19, see rank | 3.65 | 3.29 |
| Married-Couple Family | 76,074, 57.73%, see rank | 49.35% | 48.97% |
| Nonfamily Households | 38,371, 29.12%, see rank | 31.41% | 33.53% |
ACS 2006-2010 data
Total population: 336,477
| Placer County | California | U.S. | |
| Total Households | 129,153, 100% | 12,392,852 | 114,235,996 |
| Average Household Size | 2.58, see rank | 2.89 | 2.59 |
| 1 Person Households | 29,165, 22.58%, see rank | 24.39% | 27.24% |
| 2 or More Person Households | 99,988, 77.42%, see rank | 75.61% | 72.76% |
| Family Households (Families) | 92,254, 71.43%, see rank | 68.55% | 66.75% |
| Average Family Size | 3.11, see rank | 3.60 | 3.25 |
| Married-Couple Family | 75,494, 58.45%, see rank | 49.76% | 49.60% |
| Nonfamily Households | 36,899, 28.57%, see rank | 31.45% | 33.25% |
ACS 2005-2009 data
Total population: 332,059
| Placer County | California | U.S. | |
| Total Households | 125,046, 100% | 12,187,191 | 112,611,029 |
| Average Household Size | 2.63, see rank | 2.91 | 2.60 |
| 1 Person Households | 27,708, 22.16%, see rank | 24.57% | 27.32% |
| 2 or More Person Households | 97,338, 77.84%, see rank | 75.43% | 72.68% |
| Family Households (Families) | 90,471, 72.35%, see rank | 68.38% | 66.67% |
| Average Family Size | 3.14, see rank | 3.63 | 3.27 |
| Married-Couple Family | 73,995, 59.17%, see rank | 49.93% | 49.71% |
| Nonfamily Households | 34,575, 27.65%, see rank | 31.62% | 33.33% |
US Census 2000 data
Total population: 248,399
| Placer County | California | U.S. | |
| Total Households | 93,382, 100% | 11,502,870 | 105,480,101 |
| Average Household Size | 2.63, see rank | 2.87 | 2.59 |
| 1 Person Households | 19,860, 21.27%, see rank | 23.54% | 25.82% |
| 2 or More Person Households | 73,522, 78.73%, see rank | 76.46% | 74.18% |
| Family Households (Families) | 67,742, 72.54%, see rank | 68.85% | 68.06% |
| Average Family Size | 3.06, see rank | 3.43 | 3.14 |
| Married-Couple Family | 55,494, 59.43%, see rank | 51.09% | 51.66% |
| Nonfamily Households | 25,640, 27.46%, see rank | 31.15% | 31.94% |
* 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.