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Seattle, Tacoma, Bellevue Metro Area Historical Household and Family Data
ACS 2010-2014 data
Total population: 3,557,037
| Seattle, Tacoma, Bellevue Area | Washington | U.S. | |
| Total Households | 1,381,607, 100% | 2,645,396 | 116,211,092 |
| Average Household Size | 2.53, see rank | 2.55 | 2.63 |
| 1 Person Households | 400,058, 28.96%, see rank | 27.79% | 27.57% |
| 2 or More Person Households | 981,549, 71.04%, see rank | 72.21% | 72.43% |
| Family Households (Families) | 864,455, 62.57%, see rank | 64.48% | 66.22% |
| Average Family Size | 3.24, see rank | 3.23 | 3.32 |
| Married-Couple Family | 668,831, 48.41%, see rank | 49.73% | 48.42% |
| Nonfamily Households | 517,152, 37.43%, see rank | 35.52% | 33.78% |
US Census 2010 data
Total population: 3,439,809
| Seattle, Tacoma, Bellevue Area | Washington | U.S. | |
| Total Households | 1,357,475, 100% | 2,620,076 | 116,716,292 |
| Average Household Size | 2.49, see rank | 2.51 | 2.58 |
| 1 Person Households | 385,195, 28.38%, see rank | 27.16% | 26.74% |
| 2 or More Person Households | 972,280, 71.62%, see rank | 72.84% | 73.26% |
| Family Households (Families) | 845,966, 62.32%, see rank | 64.40% | 66.43% |
| Average Family Size | 3.08, see rank | 3.06 | 3.14 |
| Married-Couple Family | 644,876, 47.51%, see rank | 49.19% | 48.42% |
| Nonfamily Households | 511,509, 37.68%, see rank | 35.60% | 33.57% |
ACS 2008-2012 data
Total population: 3,453,748
| Seattle, Tacoma, Bellevue Area | Washington | U.S. | |
| Total Households | 1,364,435, 100% | 2,619,995 | 115,226,802 |
| Average Household Size | 2.48, see rank | 2.52 | 2.61 |
| 1 Person Households | 396,538, 29.06%, see rank | 27.74% | 27.45% |
| 2 or More Person Households | 967,897, 70.94%, see rank | 72.26% | 72.55% |
| Family Households (Families) | 850,463, 62.33%, see rank | 64.49% | 66.47% |
| Average Family Size | 3.18, see rank | 3.18 | 3.29 |
| Married-Couple Family | 660,213, 48.39%, see rank | 49.98% | 48.97% |
| Nonfamily Households | 513,972, 37.67%, see rank | 35.51% | 33.53% |
ACS 2006-2010 data
Total population: 3,356,089
| Seattle, Tacoma, Bellevue Area | Washington | U.S. | |
| Total Households | 1,341,462, 100% | 2,577,375 | 114,235,996 |
| Average Household Size | 2.45, see rank | 2.49 | 2.59 |
| 1 Person Households | 392,827, 29.28%, see rank | 27.74% | 27.24% |
| 2 or More Person Households | 948,635, 70.72%, see rank | 72.26% | 72.76% |
| Family Households (Families) | 834,637, 62.22%, see rank | 64.62% | 66.75% |
| Average Family Size | 3.15, see rank | 3.14 | 3.25 |
| Married-Couple Family | 646,509, 48.19%, see rank | 50.17% | 49.60% |
| Nonfamily Households | 506,825, 37.78%, see rank | 35.38% | 33.25% |
ACS 2005-2009 data
Total population: 3,306,836
| Seattle, Tacoma, Bellevue Area | Washington | U.S. | |
| Total Households | 1,317,951, 100% | 2,512,327 | 112,611,029 |
| Average Household Size | 2.46, see rank | 2.52 | 2.60 |
| 1 Person Households | 386,669, 29.34%, see rank | 27.81% | 27.32% |
| 2 or More Person Households | 931,282, 70.66%, see rank | 72.19% | 72.68% |
| Family Households (Families) | 818,542, 62.11%, see rank | 64.50% | 66.67% |
| Average Family Size | 3.15, see rank | 3.18 | 3.27 |
| Married-Couple Family | 635,437, 48.21%, see rank | 50.27% | 49.71% |
| Nonfamily Households | 499,409, 37.89%, see rank | 35.50% | 33.33% |
* 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.