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San Marcos, CA Historical Household and Family Data
ACS 2010-2014 data
Total population: 87,808
| San Marcos, CA | California | U.S. | |
| Total Households | 28,428, 100% | 12,617,280 | 116,211,092 |
| Average Household Size | 3.06, see rank | 2.95 | 2.63 |
| 1 Person Households | 5,705, 20.07%, see rank | 24.10% | 27.57% |
| 2 or More Person Households | 22,723, 79.93%, see rank | 75.90% | 72.43% |
| Family Households (Families) | 20,351, 71.59%, see rank | 68.69% | 66.22% |
| Average Family Size | 3.69, see rank | 3.67 | 3.32 |
| Married-Couple Family | 15,697, 55.22%, see rank | 49.11% | 48.42% |
| Nonfamily Households | 8,077, 28.41%, see rank | 31.31% | 33.78% |
US Census 2010 data
Total population: 83,781
| San Marcos, CA | California | U.S. | |
| Total Households | 27,202, 100% | 12,577,498 | 116,716,292 |
| Average Household Size | 3.05, see rank | 2.90 | 2.58 |
| 1 Person Households | 5,168, 19.00%, see rank | 23.29% | 26.74% |
| 2 or More Person Households | 22,034, 81.00%, see rank | 76.71% | 73.26% |
| Family Households (Families) | 19,811, 72.83%, see rank | 68.71% | 66.43% |
| Average Family Size | 3.49, see rank | 3.45 | 3.14 |
| Married-Couple Family | 15,242, 56.03%, see rank | 49.40% | 48.42% |
| Nonfamily Households | 7,391, 27.17%, see rank | 31.29% | 33.57% |
ACS 2008-2012 data
Total population: 83,028
| San Marcos, CA | California | U.S. | |
| Total Households | 27,097, 100% | 12,466,331 | 115,226,802 |
| Average Household Size | 3.04, see rank | 2.93 | 2.61 |
| 1 Person Households | 5,136, 18.95%, see rank | 24.31% | 27.45% |
| 2 or More Person Households | 21,961, 81.05%, see rank | 75.69% | 72.55% |
| Family Households (Families) | 19,696, 72.69%, see rank | 68.59% | 66.47% |
| Average Family Size | 3.63, see rank | 3.65 | 3.29 |
| Married-Couple Family | 15,364, 56.70%, see rank | 49.35% | 48.97% |
| Nonfamily Households | 7,401, 27.31%, see rank | 31.41% | 33.53% |
ACS 2006-2010 data
Total population: 78,127
| San Marcos, CA | California | U.S. | |
| Total Households | 25,621, 100% | 12,392,852 | 114,235,996 |
| Average Household Size | 3.05, see rank | 2.89 | 2.59 |
| 1 Person Households | 4,720, 18.42%, see rank | 24.39% | 27.24% |
| 2 or More Person Households | 20,901, 81.58%, see rank | 75.61% | 72.76% |
| Family Households (Families) | 18,858, 73.60%, see rank | 68.55% | 66.75% |
| Average Family Size | 3.61, see rank | 3.60 | 3.25 |
| Married-Couple Family | 14,921, 58.24%, see rank | 49.76% | 49.60% |
| Nonfamily Households | 6,763, 26.40%, see rank | 31.45% | 33.25% |
ACS 2005-2009 data
Total population: 77,286
| San Marcos, CA | California | U.S. | |
| Total Households | 24,848, 100% | 12,187,191 | 112,611,029 |
| Average Household Size | 3.11, see rank | 2.91 | 2.60 |
| 1 Person Households | 4,885, 19.66%, see rank | 24.57% | 27.32% |
| 2 or More Person Households | 19,963, 80.34%, see rank | 75.43% | 72.68% |
| Family Households (Families) | 18,118, 72.92%, see rank | 68.38% | 66.67% |
| Average Family Size | 3.72, see rank | 3.63 | 3.27 |
| Married-Couple Family | 14,306, 57.57%, see rank | 49.93% | 49.71% |
| Nonfamily Households | 6,730, 27.08%, see rank | 31.62% | 33.33% |
US Census 2000 data
Total population: 54,977
| San Marcos, CA | California | U.S. | |
| Total Households | 18,111, 100% | 11,502,870 | 105,480,101 |
| Average Household Size | 3.03, see rank | 2.87 | 2.59 |
| 1 Person Households | 3,677, 20.30%, see rank | 23.54% | 25.82% |
| 2 or More Person Households | 14,434, 79.70%, see rank | 76.46% | 74.18% |
| Family Households (Families) | 13,212, 72.95%, see rank | 68.85% | 68.06% |
| Average Family Size | 3.46, see rank | 3.43 | 3.14 |
| Married-Couple Family | 10,609, 58.58%, see rank | 51.09% | 51.66% |
| Nonfamily Households | 4,899, 27.05%, 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.