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Richland, WA Historical Household and Family Data
ACS 2010-2014 data
Total population: 51,116
| Richland, WA | Washington | U.S. | |
| Total Households | 20,401, 100% | 2,645,396 | 116,211,092 |
| Average Household Size | 2.49, see rank | 2.55 | 2.63 |
| 1 Person Households | 5,848, 28.67%, see rank | 27.79% | 27.57% |
| 2 or More Person Households | 14,553, 71.33%, see rank | 72.21% | 72.43% |
| Family Households (Families) | 13,499, 66.17%, see rank | 64.48% | 66.22% |
| Average Family Size | 3.14, see rank | 3.23 | 3.32 |
| Married-Couple Family | 10,609, 52.00%, see rank | 49.73% | 48.42% |
| Nonfamily Households | 6,902, 33.83%, see rank | 35.52% | 33.78% |
US Census 2010 data
Total population: 48,058
| Richland, WA | Washington | U.S. | |
| Total Households | 19,707, 100% | 2,620,076 | 116,716,292 |
| Average Household Size | 2.42, see rank | 2.51 | 2.58 |
| 1 Person Households | 5,559, 28.21%, see rank | 27.16% | 26.74% |
| 2 or More Person Households | 14,148, 71.79%, see rank | 72.84% | 73.26% |
| Family Households (Families) | 12,974, 65.83%, see rank | 64.40% | 66.43% |
| Average Family Size | 2.97, see rank | 3.06 | 3.14 |
| Married-Couple Family | 10,175, 51.63%, see rank | 49.19% | 48.42% |
| Nonfamily Households | 6,733, 34.17%, see rank | 35.60% | 33.57% |
ACS 2008-2012 data
Total population: 48,556
| Richland, WA | Washington | U.S. | |
| Total Households | 19,439, 100% | 2,619,995 | 115,226,802 |
| Average Household Size | 2.49, see rank | 2.52 | 2.61 |
| 1 Person Households | 5,638, 29.00%, see rank | 27.74% | 27.45% |
| 2 or More Person Households | 13,801, 71.00%, see rank | 72.26% | 72.55% |
| Family Households (Families) | 12,975, 66.75%, see rank | 64.49% | 66.47% |
| Average Family Size | 3.14, see rank | 3.18 | 3.29 |
| Married-Couple Family | 10,325, 53.11%, see rank | 49.98% | 48.97% |
| Nonfamily Households | 6,464, 33.25%, see rank | 35.51% | 33.53% |
ACS 2006-2010 data
Total population: 45,780
| Richland, WA | Washington | U.S. | |
| Total Households | 18,420, 100% | 2,577,375 | 114,235,996 |
| Average Household Size | 2.48, see rank | 2.49 | 2.59 |
| 1 Person Households | 5,050, 27.42%, see rank | 27.74% | 27.24% |
| 2 or More Person Households | 13,370, 72.58%, see rank | 72.26% | 72.76% |
| Family Households (Families) | 12,530, 68.02%, see rank | 64.62% | 66.75% |
| Average Family Size | 3.08, see rank | 3.14 | 3.25 |
| Married-Couple Family | 9,923, 53.87%, see rank | 50.17% | 49.60% |
| Nonfamily Households | 5,890, 31.98%, see rank | 35.38% | 33.25% |
ACS 2005-2009 data
Total population: 45,182
| Richland, WA | Washington | U.S. | |
| Total Households | 17,806, 100% | 2,512,327 | 112,611,029 |
| Average Household Size | 2.53, see rank | 2.52 | 2.60 |
| 1 Person Households | 5,136, 28.84%, see rank | 27.81% | 27.32% |
| 2 or More Person Households | 12,670, 71.16%, see rank | 72.19% | 72.68% |
| Family Households (Families) | 11,917, 66.93%, see rank | 64.50% | 66.67% |
| Average Family Size | 3.18, see rank | 3.18 | 3.27 |
| Married-Couple Family | 9,456, 53.11%, see rank | 50.27% | 49.71% |
| Nonfamily Households | 5,889, 33.07%, see rank | 35.50% | 33.33% |
US Census 2000 data
Total population: 38,708
| Richland, WA | Washington | U.S. | |
| Total Households | 15,549, 100% | 2,271,398 | 105,480,101 |
| Average Household Size | 2.48, see rank | 2.53 | 2.59 |
| 1 Person Households | 4,230, 27.20%, see rank | 26.17% | 25.82% |
| 2 or More Person Households | 11,319, 72.80%, see rank | 73.83% | 74.18% |
| Family Households (Families) | 10,687, 68.73%, see rank | 66.00% | 68.06% |
| Average Family Size | 3.02, see rank | 3.07 | 3.14 |
| Married-Couple Family | 8,700, 55.95%, see rank | 52.04% | 51.66% |
| Nonfamily Households | 4,862, 31.27%, 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.