Lewis County Historical Household and Family Data
ACS 2010-2014 data
Total population: 75,382
| Lewis County | Washington | U.S. | |
| Total Households | 29,450, 100% | 2,645,396 | 116,211,092 |
| Average Household Size | 2.52, see rank | 2.55 | 2.63 |
| 1 Person Households | 7,988, 27.12%, see rank | 27.79% | 27.57% |
| 2 or More Person Households | 21,462, 72.88%, see rank | 72.21% | 72.43% |
| Family Households (Families) | 19,773, 67.14%, see rank | 64.48% | 66.22% |
| Average Family Size | 3.14, see rank | 3.23 | 3.32 |
| Married-Couple Family | 15,265, 51.83%, see rank | 49.73% | 48.42% |
| Nonfamily Households | 9,677, 32.86%, see rank | 35.52% | 33.78% |
US Census 2010 data
Total population: 75,455
| Lewis County | Washington | U.S. | |
| Total Households | 29,743, 100% | 2,620,076 | 116,716,292 |
| Average Household Size | 2.51, see rank | 2.51 | 2.58 |
| 1 Person Households | 7,644, 25.70%, see rank | 27.16% | 26.74% |
| 2 or More Person Households | 22,099, 74.30%, see rank | 72.84% | 73.26% |
| Family Households (Families) | 20,104, 67.59%, see rank | 64.40% | 66.43% |
| Average Family Size | 2.97, see rank | 3.06 | 3.14 |
| Married-Couple Family | 15,241, 51.24%, see rank | 49.19% | 48.42% |
| Nonfamily Households | 9,639, 32.41%, see rank | 35.60% | 33.57% |
ACS 2008-2012 data
Total population: 75,399
| Lewis County | Washington | U.S. | |
| Total Households | 29,486, 100% | 2,619,995 | 115,226,802 |
| Average Household Size | 2.53, see rank | 2.52 | 2.61 |
| 1 Person Households | 8,343, 28.29%, see rank | 27.74% | 27.45% |
| 2 or More Person Households | 21,143, 71.71%, see rank | 72.26% | 72.55% |
| Family Households (Families) | 19,556, 66.32%, see rank | 64.49% | 66.47% |
| Average Family Size | 3.18, see rank | 3.18 | 3.29 |
| Married-Couple Family | 15,262, 51.76%, see rank | 49.98% | 48.97% |
| Nonfamily Households | 9,930, 33.68%, see rank | 35.51% | 33.53% |
ACS 2006-2010 data
Total population: 74,650
| Lewis County | Washington | U.S. | |
| Total Households | 29,290, 100% | 2,577,375 | 114,235,996 |
| Average Household Size | 2.52, see rank | 2.49 | 2.59 |
| 1 Person Households | 8,006, 27.33%, see rank | 27.74% | 27.24% |
| 2 or More Person Households | 21,284, 72.67%, see rank | 72.26% | 72.76% |
| Family Households (Families) | 19,750, 67.43%, see rank | 64.62% | 66.75% |
| Average Family Size | 3.14, see rank | 3.14 | 3.25 |
| Married-Couple Family | 15,393, 52.55%, see rank | 50.17% | 49.60% |
| Nonfamily Households | 9,540, 32.57%, see rank | 35.38% | 33.25% |
ACS 2005-2009 data
Total population: 73,459
| Lewis County | Washington | U.S. | |
| Total Households | 28,297, 100% | 2,512,327 | 112,611,029 |
| Average Household Size | 2.56, see rank | 2.52 | 2.60 |
| 1 Person Households | 7,399, 26.15%, see rank | 27.81% | 27.32% |
| 2 or More Person Households | 20,898, 73.85%, see rank | 72.19% | 72.68% |
| Family Households (Families) | 19,283, 68.15%, see rank | 64.50% | 66.67% |
| Average Family Size | 3.17, see rank | 3.18 | 3.27 |
| Married-Couple Family | 15,217, 53.78%, see rank | 50.27% | 49.71% |
| Nonfamily Households | 9,014, 31.85%, see rank | 35.50% | 33.33% |
US Census 2000 data
Total population: 68,600
| Lewis County | Washington | U.S. | |
| Total Households | 26,306, 100% | 2,271,398 | 105,480,101 |
| Average Household Size | 2.57, see rank | 2.53 | 2.59 |
| 1 Person Households | 6,326, 24.05%, see rank | 26.17% | 25.82% |
| 2 or More Person Households | 19,980, 75.95%, see rank | 73.83% | 74.18% |
| Family Households (Families) | 18,559, 70.55%, see rank | 66.00% | 68.06% |
| Average Family Size | 3.02, see rank | 3.07 | 3.14 |
| Married-Couple Family | 14,705, 55.90%, see rank | 52.04% | 51.66% |
| Nonfamily Households | 7,747, 29.45%, 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.