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Altadena, CA Historical Household and Family Data
ACS 2010-2014 data
Total population: 44,622
| Altadena, CA | California | U.S. | |
| Total Households | 15,518, 100% | 12,617,280 | 116,211,092 |
| Average Household Size | 2.84, see rank | 2.95 | 2.63 |
| 1 Person Households | 3,633, 23.41%, see rank | 24.10% | 27.57% |
| 2 or More Person Households | 11,885, 76.59%, see rank | 75.90% | 72.43% |
| Family Households (Families) | 10,967, 70.67%, see rank | 68.69% | 66.22% |
| Average Family Size | 3.48, see rank | 3.67 | 3.32 |
| Married-Couple Family | 8,114, 52.29%, see rank | 49.11% | 48.42% |
| Nonfamily Households | 4,551, 29.33%, see rank | 31.31% | 33.78% |
US Census 2010 data
Total population: 42,777
| Altadena, CA | California | U.S. | |
| Total Households | 15,212, 100% | 12,577,498 | 116,716,292 |
| Average Household Size | 2.78, see rank | 2.90 | 2.58 |
| 1 Person Households | 3,489, 22.94%, see rank | 23.29% | 26.74% |
| 2 or More Person Households | 11,723, 77.06%, see rank | 76.71% | 73.26% |
| Family Households (Families) | 10,708, 70.39%, see rank | 68.71% | 66.43% |
| Average Family Size | 3.26, see rank | 3.45 | 3.14 |
| Married-Couple Family | 7,684, 50.51%, see rank | 49.40% | 48.42% |
| Nonfamily Households | 4,504, 29.61%, see rank | 31.29% | 33.57% |
ACS 2008-2012 data
Total population: 44,578
| Altadena, CA | California | U.S. | |
| Total Households | 15,440, 100% | 12,466,331 | 115,226,802 |
| Average Household Size | 2.83, see rank | 2.93 | 2.61 |
| 1 Person Households | 3,553, 23.01%, see rank | 24.31% | 27.45% |
| 2 or More Person Households | 11,887, 76.99%, see rank | 75.69% | 72.55% |
| Family Households (Families) | 10,882, 70.48%, see rank | 68.59% | 66.47% |
| Average Family Size | 3.49, see rank | 3.65 | 3.29 |
| Married-Couple Family | 8,312, 53.83%, see rank | 49.35% | 48.97% |
| Nonfamily Households | 4,558, 29.52%, see rank | 31.41% | 33.53% |
ACS 2006-2010 data
Total population: 45,446
| Altadena, CA | California | U.S. | |
| Total Households | 15,549, 100% | 12,392,852 | 114,235,996 |
| Average Household Size | 2.85, see rank | 2.89 | 2.59 |
| 1 Person Households | 3,643, 23.43%, see rank | 24.39% | 27.24% |
| 2 or More Person Households | 11,906, 76.57%, see rank | 75.61% | 72.76% |
| Family Households (Families) | 11,080, 71.26%, see rank | 68.55% | 66.75% |
| Average Family Size | 3.50, see rank | 3.60 | 3.25 |
| Married-Couple Family | 8,293, 53.33%, see rank | 49.76% | 49.60% |
| Nonfamily Households | 4,469, 28.74%, see rank | 31.45% | 33.25% |
ACS 2005-2009 data
Total population: 44,693
| Altadena, CA | California | U.S. | |
| Total Households | 15,064, 100% | 12,187,191 | 112,611,029 |
| Average Household Size | 2.88, see rank | 2.91 | 2.60 |
| 1 Person Households | 3,588, 23.82%, see rank | 24.57% | 27.32% |
| 2 or More Person Households | 11,476, 76.18%, see rank | 75.43% | 72.68% |
| Family Households (Families) | 10,710, 71.10%, see rank | 68.38% | 66.67% |
| Average Family Size | 3.55, see rank | 3.63 | 3.27 |
| Married-Couple Family | 8,075, 53.60%, see rank | 49.93% | 49.71% |
| Nonfamily Households | 4,354, 28.90%, see rank | 31.62% | 33.33% |
US Census 2000 data
Total population: 42,610
| Altadena, CA | California | U.S. | |
| Total Households | 14,780, 100% | 11,502,870 | 105,480,101 |
| Average Household Size | 2.82, see rank | 2.87 | 2.59 |
| 1 Person Households | 3,222, 21.80%, see rank | 23.54% | 25.82% |
| 2 or More Person Households | 11,558, 78.20%, see rank | 76.46% | 74.18% |
| Family Households (Families) | 10,673, 72.21%, see rank | 68.85% | 68.06% |
| Average Family Size | 3.29, see rank | 3.43 | 3.14 |
| Married-Couple Family | 7,730, 52.30%, see rank | 51.09% | 51.66% |
| Nonfamily Households | 4,107, 27.79%, 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.