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Sammamish, WA Historical Household and Family Data
ACS 2010-2014 data
Total population: 49,077
| Sammamish, WA | Washington | U.S. | |
| Total Households | 15,820, 100% | 2,645,396 | 116,211,092 |
| Average Household Size | 3.10, see rank | 2.55 | 2.63 |
| 1 Person Households | 1,478, 9.34%, see rank | 27.79% | 27.57% |
| 2 or More Person Households | 14,342, 90.66%, see rank | 72.21% | 72.43% |
| Family Households (Families) | 13,888, 87.79%, see rank | 64.48% | 66.22% |
| Average Family Size | 3.34, see rank | 3.23 | 3.32 |
| Married-Couple Family | 12,606, 79.68%, see rank | 49.73% | 48.42% |
| Nonfamily Households | 1,932, 12.21%, see rank | 35.52% | 33.78% |
US Census 2010 data
Total population: 45,780
| Sammamish, WA | Washington | U.S. | |
| Total Households | 15,154, 100% | 2,620,076 | 116,716,292 |
| Average Household Size | 3.01, see rank | 2.51 | 2.58 |
| 1 Person Households | 1,721, 11.36%, see rank | 27.16% | 26.74% |
| 2 or More Person Households | 13,433, 88.64%, see rank | 72.84% | 73.26% |
| Family Households (Families) | 12,918, 85.24%, see rank | 64.40% | 66.43% |
| Average Family Size | 3.28, see rank | 3.06 | 3.14 |
| Married-Couple Family | 11,648, 76.86%, see rank | 49.19% | 48.42% |
| Nonfamily Households | 2,236, 14.76%, see rank | 35.60% | 33.57% |
ACS 2008-2012 data
Total population: 46,405
| Sammamish, WA | Washington | U.S. | |
| Total Households | 14,994, 100% | 2,619,995 | 115,226,802 |
| Average Household Size | 3.09, see rank | 2.52 | 2.61 |
| 1 Person Households | 1,470, 9.80%, see rank | 27.74% | 27.45% |
| 2 or More Person Households | 13,524, 90.20%, see rank | 72.26% | 72.55% |
| Family Households (Families) | 12,971, 86.51%, see rank | 64.49% | 66.47% |
| Average Family Size | 3.37, see rank | 3.18 | 3.29 |
| Married-Couple Family | 11,871, 79.17%, see rank | 49.98% | 48.97% |
| Nonfamily Households | 2,023, 13.49%, see rank | 35.51% | 33.53% |
ACS 2006-2010 data
Total population: 43,341
| Sammamish, WA | Washington | U.S. | |
| Total Households | 14,188, 100% | 2,577,375 | 114,235,996 |
| Average Household Size | 3.05, see rank | 2.49 | 2.59 |
| 1 Person Households | 1,585, 11.17%, see rank | 27.74% | 27.24% |
| 2 or More Person Households | 12,603, 88.83%, see rank | 72.26% | 72.76% |
| Family Households (Families) | 12,091, 85.22%, see rank | 64.62% | 66.75% |
| Average Family Size | 3.36, see rank | 3.14 | 3.25 |
| Married-Couple Family | 11,039, 77.81%, see rank | 50.17% | 49.60% |
| Nonfamily Households | 2,097, 14.78%, see rank | 35.38% | 33.25% |
ACS 2005-2009 data
Total population: 41,666
| Sammamish, WA | Washington | U.S. | |
| Total Households | 13,550, 100% | 2,512,327 | 112,611,029 |
| Average Household Size | 3.07, see rank | 2.52 | 2.60 |
| 1 Person Households | 1,573, 11.61%, see rank | 27.81% | 27.32% |
| 2 or More Person Households | 11,977, 88.39%, see rank | 72.19% | 72.68% |
| Family Households (Families) | 11,443, 84.45%, see rank | 64.50% | 66.67% |
| Average Family Size | 3.40, see rank | 3.18 | 3.27 |
| Married-Couple Family | 10,493, 77.44%, see rank | 50.27% | 49.71% |
| Nonfamily Households | 2,107, 15.55%, see rank | 35.50% | 33.33% |
US Census 2000 data
Total population: 34,104
| Sammamish, WA | Washington | U.S. | |
| Total Households | 11,131, 100% | 2,271,398 | 105,480,101 |
| Average Household Size | 3.06, see rank | 2.53 | 2.59 |
| 1 Person Households | 1,051, 9.44%, see rank | 26.17% | 25.82% |
| 2 or More Person Households | 10,080, 90.56%, see rank | 73.83% | 74.18% |
| Family Households (Families) | 9,655, 86.74%, see rank | 66.00% | 68.06% |
| Average Family Size | 3.29, see rank | 3.07 | 3.14 |
| Married-Couple Family | 8,849, 79.50%, see rank | 52.04% | 51.66% |
| Nonfamily Households | 1,476, 13.26%, see rank | 34.00% | 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.