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San Mateo, CA Historical Household and Family Data
ACS 2010-2014 data
Total population: 100,114
| San Mateo, CA | California | U.S. | |
| Total Households | 38,011, 100% | 12,617,280 | 116,211,092 |
| Average Household Size | 2.59, see rank | 2.95 | 2.63 |
| 1 Person Households | 11,165, 29.37%, see rank | 24.10% | 27.57% |
| 2 or More Person Households | 26,846, 70.63%, see rank | 75.90% | 72.43% |
| Family Households (Families) | 23,938, 62.98%, see rank | 68.69% | 66.22% |
| Average Family Size | 3.33, see rank | 3.67 | 3.32 |
| Married-Couple Family | 18,301, 48.15%, see rank | 49.11% | 48.42% |
| Nonfamily Households | 14,073, 37.02%, see rank | 31.31% | 33.78% |
US Census 2010 data
Total population: 97,207
| San Mateo, CA | California | U.S. | |
| Total Households | 38,233, 100% | 12,577,498 | 116,716,292 |
| Average Household Size | 2.51, see rank | 2.90 | 2.58 |
| 1 Person Households | 11,751, 30.74%, see rank | 23.29% | 26.74% |
| 2 or More Person Households | 26,482, 69.26%, see rank | 76.71% | 73.26% |
| Family Households (Families) | 23,444, 61.32%, see rank | 68.71% | 66.43% |
| Average Family Size | 3.14, see rank | 3.45 | 3.14 |
| Married-Couple Family | 17,964, 46.99%, see rank | 49.40% | 48.42% |
| Nonfamily Households | 14,789, 38.68%, see rank | 31.29% | 33.57% |
ACS 2008-2012 data
Total population: 97,322
| San Mateo, CA | California | U.S. | |
| Total Households | 37,217, 100% | 12,466,331 | 115,226,802 |
| Average Household Size | 2.58, see rank | 2.93 | 2.61 |
| 1 Person Households | 11,411, 30.66%, see rank | 24.31% | 27.45% |
| 2 or More Person Households | 25,806, 69.34%, see rank | 75.69% | 72.55% |
| Family Households (Families) | 22,994, 61.78%, see rank | 68.59% | 66.47% |
| Average Family Size | 3.36, see rank | 3.65 | 3.29 |
| Married-Couple Family | 18,109, 48.66%, see rank | 49.35% | 48.97% |
| Nonfamily Households | 14,223, 38.22%, see rank | 31.41% | 33.53% |
ACS 2006-2010 data
Total population: 94,751
| San Mateo, CA | California | U.S. | |
| Total Households | 37,705, 100% | 12,392,852 | 114,235,996 |
| Average Household Size | 2.49, see rank | 2.89 | 2.59 |
| 1 Person Households | 12,211, 32.39%, see rank | 24.39% | 27.24% |
| 2 or More Person Households | 25,494, 67.61%, see rank | 75.61% | 72.76% |
| Family Households (Families) | 22,792, 60.45%, see rank | 68.55% | 66.75% |
| Average Family Size | 3.29, see rank | 3.60 | 3.25 |
| Married-Couple Family | 18,365, 48.71%, see rank | 49.76% | 49.60% |
| Nonfamily Households | 14,913, 39.55%, see rank | 31.45% | 33.25% |
ACS 2005-2009 data
Total population: 90,992
| San Mateo, CA | California | U.S. | |
| Total Households | 36,339, 100% | 12,187,191 | 112,611,029 |
| Average Household Size | 2.47, see rank | 2.91 | 2.60 |
| 1 Person Households | 12,049, 33.16%, see rank | 24.57% | 27.32% |
| 2 or More Person Households | 24,290, 66.84%, see rank | 75.43% | 72.68% |
| Family Households (Families) | 21,589, 59.41%, see rank | 68.38% | 66.67% |
| Average Family Size | 3.29, see rank | 3.63 | 3.27 |
| Married-Couple Family | 17,547, 48.29%, see rank | 49.93% | 49.71% |
| Nonfamily Households | 14,750, 40.59%, see rank | 31.62% | 33.33% |
US Census 2000 data
Total population: 92,482
| San Mateo, CA | California | U.S. | |
| Total Households | 37,338, 100% | 11,502,870 | 105,480,101 |
| Average Household Size | 2.44, see rank | 2.87 | 2.59 |
| 1 Person Households | 11,785, 31.56%, see rank | 23.54% | 25.82% |
| 2 or More Person Households | 25,553, 68.44%, see rank | 76.46% | 74.18% |
| Family Households (Families) | 22,310, 59.75%, see rank | 68.85% | 68.06% |
| Average Family Size | 3.09, see rank | 3.43 | 3.14 |
| Married-Couple Family | 17,509, 46.89%, see rank | 51.09% | 51.66% |
| Nonfamily Households | 15,028, 40.25%, 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.