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San Juan County Historical Household and Family Data
ACS 2010-2014 data
Total population: 15,847
| San Juan County | Washington | U.S. | |
| Total Households | 7,611, 100% | 2,645,396 | 116,211,092 |
| Average Household Size | 2.06, see rank | 2.55 | 2.63 |
| 1 Person Households | 2,313, 30.39%, see rank | 27.79% | 27.57% |
| 2 or More Person Households | 5,298, 69.61%, see rank | 72.21% | 72.43% |
| Family Households (Families) | 4,734, 62.20%, see rank | 64.48% | 66.22% |
| Average Family Size | 2.56, see rank | 3.23 | 3.32 |
| Married-Couple Family | 3,848, 50.56%, see rank | 49.73% | 48.42% |
| Nonfamily Households | 2,877, 37.80%, see rank | 35.52% | 33.78% |
US Census 2010 data
Total population: 15,769
| San Juan County | Washington | U.S. | |
| Total Households | 7,613, 100% | 2,620,076 | 116,716,292 |
| Average Household Size | 2.05, see rank | 2.51 | 2.58 |
| 1 Person Households | 2,588, 33.99%, see rank | 27.16% | 26.74% |
| 2 or More Person Households | 5,025, 66.01%, see rank | 72.84% | 73.26% |
| Family Households (Families) | 4,438, 58.30%, see rank | 64.40% | 66.43% |
| Average Family Size | 2.56, see rank | 3.06 | 3.14 |
| Married-Couple Family | 3,676, 48.29%, see rank | 49.19% | 48.42% |
| Nonfamily Households | 3,175, 41.70%, see rank | 35.60% | 33.57% |
ACS 2008-2012 data
Total population: 15,740
| San Juan County | Washington | U.S. | |
| Total Households | 7,963, 100% | 2,619,995 | 115,226,802 |
| Average Household Size | 1.95, see rank | 2.52 | 2.61 |
| 1 Person Households | 2,487, 31.23%, see rank | 27.74% | 27.45% |
| 2 or More Person Households | 5,476, 68.77%, see rank | 72.26% | 72.55% |
| Family Households (Families) | 4,888, 61.38%, see rank | 64.49% | 66.47% |
| Average Family Size | 2.45, see rank | 3.18 | 3.29 |
| Married-Couple Family | 3,885, 48.79%, see rank | 49.98% | 48.97% |
| Nonfamily Households | 3,075, 38.62%, see rank | 35.51% | 33.53% |
ACS 2006-2010 data
Total population: 15,551
| San Juan County | Washington | U.S. | |
| Total Households | 7,986, 100% | 2,577,375 | 114,235,996 |
| Average Household Size | 1.94, see rank | 2.49 | 2.59 |
| 1 Person Households | 2,418, 30.28%, see rank | 27.74% | 27.24% |
| 2 or More Person Households | 5,568, 69.72%, see rank | 72.26% | 72.76% |
| Family Households (Families) | 4,933, 61.77%, see rank | 64.62% | 66.75% |
| Average Family Size | 2.41, see rank | 3.14 | 3.25 |
| Married-Couple Family | 4,023, 50.38%, see rank | 50.17% | 49.60% |
| Nonfamily Households | 3,053, 38.23%, see rank | 35.38% | 33.25% |
ACS 2005-2009 data
Total population: 15,295
| San Juan County | Washington | U.S. | |
| Total Households | 7,357, 100% | 2,512,327 | 112,611,029 |
| Average Household Size | 2.07, see rank | 2.52 | 2.60 |
| 1 Person Households | 2,288, 31.10%, see rank | 27.81% | 27.32% |
| 2 or More Person Households | 5,069, 68.90%, see rank | 72.19% | 72.68% |
| Family Households (Families) | 4,501, 61.18%, see rank | 64.50% | 66.67% |
| Average Family Size | 2.62, see rank | 3.18 | 3.27 |
| Married-Couple Family | 3,756, 51.05%, see rank | 50.27% | 49.71% |
| Nonfamily Households | 2,856, 38.82%, see rank | 35.50% | 33.33% |
US Census 2000 data
Total population: 14,077
| San Juan County | Washington | U.S. | |
| Total Households | 6,466, 100% | 2,271,398 | 105,480,101 |
| Average Household Size | 2.16, see rank | 2.53 | 2.59 |
| 1 Person Households | 1,977, 30.58%, see rank | 26.17% | 25.82% |
| 2 or More Person Households | 4,489, 69.42%, see rank | 73.83% | 74.18% |
| Family Households (Families) | 4,014, 62.08%, see rank | 66.00% | 68.06% |
| Average Family Size | 2.65, see rank | 3.07 | 3.14 |
| Married-Couple Family | 3,349, 51.79%, see rank | 52.04% | 51.66% |
| Nonfamily Households | 2,452, 37.92%, 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.