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Kennewick, WA Historical Household and Family Data
ACS 2010-2014 data
Total population: 75,971
| Kennewick, WA | Washington | U.S. | |
| Total Households | 27,250, 100% | 2,645,396 | 116,211,092 |
| Average Household Size | 2.74, see rank | 2.55 | 2.63 |
| 1 Person Households | 7,532, 27.64%, see rank | 27.79% | 27.57% |
| 2 or More Person Households | 19,718, 72.36%, see rank | 72.21% | 72.43% |
| Family Households (Families) | 18,204, 66.80%, see rank | 64.48% | 66.22% |
| Average Family Size | 3.47, see rank | 3.23 | 3.32 |
| Married-Couple Family | 13,610, 49.94%, see rank | 49.73% | 48.42% |
| Nonfamily Households | 9,046, 33.20%, see rank | 35.52% | 33.78% |
US Census 2010 data
Total population: 73,917
| Kennewick, WA | Washington | U.S. | |
| Total Households | 27,266, 100% | 2,620,076 | 116,716,292 |
| Average Household Size | 2.67, see rank | 2.51 | 2.58 |
| 1 Person Households | 7,005, 25.69%, see rank | 27.16% | 26.74% |
| 2 or More Person Households | 20,261, 74.31%, see rank | 72.84% | 73.26% |
| Family Households (Families) | 18,528, 67.95%, see rank | 64.40% | 66.43% |
| Average Family Size | 3.22, see rank | 3.06 | 3.14 |
| Married-Couple Family | 13,442, 49.30%, see rank | 49.19% | 48.42% |
| Nonfamily Households | 8,738, 32.05%, see rank | 35.60% | 33.57% |
ACS 2008-2012 data
Total population: 73,640
| Kennewick, WA | Washington | U.S. | |
| Total Households | 26,900, 100% | 2,619,995 | 115,226,802 |
| Average Household Size | 2.69, see rank | 2.52 | 2.61 |
| 1 Person Households | 7,447, 27.68%, see rank | 27.74% | 27.45% |
| 2 or More Person Households | 19,453, 72.32%, see rank | 72.26% | 72.55% |
| Family Households (Families) | 17,793, 66.14%, see rank | 64.49% | 66.47% |
| Average Family Size | 3.40, see rank | 3.18 | 3.29 |
| Married-Couple Family | 13,108, 48.73%, see rank | 49.98% | 48.97% |
| Nonfamily Households | 9,107, 33.86%, see rank | 35.51% | 33.53% |
ACS 2006-2010 data
Total population: 70,341
| Kennewick, WA | Washington | U.S. | |
| Total Households | 25,825, 100% | 2,577,375 | 114,235,996 |
| Average Household Size | 2.67, see rank | 2.49 | 2.59 |
| 1 Person Households | 6,846, 26.51%, see rank | 27.74% | 27.24% |
| 2 or More Person Households | 18,979, 73.49%, see rank | 72.26% | 72.76% |
| Family Households (Families) | 17,502, 67.77%, see rank | 64.62% | 66.75% |
| Average Family Size | 3.33, see rank | 3.14 | 3.25 |
| Married-Couple Family | 12,605, 48.81%, see rank | 50.17% | 49.60% |
| Nonfamily Households | 8,323, 32.23%, see rank | 35.38% | 33.25% |
ACS 2005-2009 data
Total population: 65,438
| Kennewick, WA | Washington | U.S. | |
| Total Households | 23,701, 100% | 2,512,327 | 112,611,029 |
| Average Household Size | 2.72, see rank | 2.52 | 2.60 |
| 1 Person Households | 6,512, 27.48%, see rank | 27.81% | 27.32% |
| 2 or More Person Households | 17,189, 72.52%, see rank | 72.19% | 72.68% |
| Family Households (Families) | 15,789, 66.62%, see rank | 64.50% | 66.67% |
| Average Family Size | 3.41, see rank | 3.18 | 3.27 |
| Married-Couple Family | 11,425, 48.20%, see rank | 50.27% | 49.71% |
| Nonfamily Households | 7,912, 33.38%, see rank | 35.50% | 33.33% |
US Census 2000 data
Total population: 54,693
| Kennewick, WA | Washington | U.S. | |
| Total Households | 20,786, 100% | 2,271,398 | 105,480,101 |
| Average Household Size | 2.60, see rank | 2.53 | 2.59 |
| 1 Person Households | 5,424, 26.09%, see rank | 26.17% | 25.82% |
| 2 or More Person Households | 15,362, 73.91%, see rank | 73.83% | 74.18% |
| Family Households (Families) | 14,177, 68.20%, see rank | 66.00% | 68.06% |
| Average Family Size | 3.15, see rank | 3.07 | 3.14 |
| Married-Couple Family | 10,700, 51.48%, see rank | 52.04% | 51.66% |
| Nonfamily Households | 6,609, 31.80%, 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.