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Kittitas County Historical Household and Family Data
ACS 2010-2014 data
Total population: 41,705
| Kittitas County | Washington | U.S. | |
| Total Households | 16,753, 100% | 2,645,396 | 116,211,092 |
| Average Household Size | 2.34, see rank | 2.55 | 2.63 |
| 1 Person Households | 4,943, 29.51%, see rank | 27.79% | 27.57% |
| 2 or More Person Households | 11,810, 70.49%, see rank | 72.21% | 72.43% |
| Family Households (Families) | 9,461, 56.47%, see rank | 64.48% | 66.22% |
| Average Family Size | 2.97, see rank | 3.23 | 3.32 |
| Married-Couple Family | 7,625, 45.51%, see rank | 49.73% | 48.42% |
| Nonfamily Households | 7,292, 43.53%, see rank | 35.52% | 33.78% |
US Census 2010 data
Total population: 40,915
| Kittitas County | Washington | U.S. | |
| Total Households | 16,595, 100% | 2,620,076 | 116,716,292 |
| Average Household Size | 2.32, see rank | 2.51 | 2.58 |
| 1 Person Households | 4,767, 28.73%, see rank | 27.16% | 26.74% |
| 2 or More Person Households | 11,828, 71.27%, see rank | 72.84% | 73.26% |
| Family Households (Families) | 9,225, 55.59%, see rank | 64.40% | 66.43% |
| Average Family Size | 2.87, see rank | 3.06 | 3.14 |
| Married-Couple Family | 7,418, 44.70%, see rank | 49.19% | 48.42% |
| Nonfamily Households | 7,370, 44.41%, see rank | 35.60% | 33.57% |
ACS 2008-2012 data
Total population: 40,954
| Kittitas County | Washington | U.S. | |
| Total Households | 16,499, 100% | 2,619,995 | 115,226,802 |
| Average Household Size | 2.34, see rank | 2.52 | 2.61 |
| 1 Person Households | 4,727, 28.65%, see rank | 27.74% | 27.45% |
| 2 or More Person Households | 11,772, 71.35%, see rank | 72.26% | 72.55% |
| Family Households (Families) | 9,498, 57.57%, see rank | 64.49% | 66.47% |
| Average Family Size | 2.96, see rank | 3.18 | 3.29 |
| Married-Couple Family | 7,810, 47.34%, see rank | 49.98% | 48.97% |
| Nonfamily Households | 7,001, 42.43%, see rank | 35.51% | 33.53% |
ACS 2006-2010 data
Total population: 39,869
| Kittitas County | Washington | U.S. | |
| Total Households | 16,619, 100% | 2,577,375 | 114,235,996 |
| Average Household Size | 2.27, see rank | 2.49 | 2.59 |
| 1 Person Households | 4,429, 26.65%, see rank | 27.74% | 27.24% |
| 2 or More Person Households | 12,190, 73.35%, see rank | 72.26% | 72.76% |
| Family Households (Families) | 9,640, 58.01%, see rank | 64.62% | 66.75% |
| Average Family Size | 2.88, see rank | 3.14 | 3.25 |
| Married-Couple Family | 8,003, 48.16%, see rank | 50.17% | 49.60% |
| Nonfamily Households | 6,979, 41.99%, see rank | 35.38% | 33.25% |
ACS 2005-2009 data
Total population: 38,428
| Kittitas County | Washington | U.S. | |
| Total Households | 15,618, 100% | 2,512,327 | 112,611,029 |
| Average Household Size | 2.31, see rank | 2.52 | 2.60 |
| 1 Person Households | 4,148, 26.56%, see rank | 27.81% | 27.32% |
| 2 or More Person Households | 11,470, 73.44%, see rank | 72.19% | 72.68% |
| Family Households (Families) | 9,008, 57.68%, see rank | 64.50% | 66.67% |
| Average Family Size | 2.90, see rank | 3.18 | 3.27 |
| Married-Couple Family | 7,422, 47.52%, see rank | 50.27% | 49.71% |
| Nonfamily Households | 6,610, 42.32%, see rank | 35.50% | 33.33% |
US Census 2000 data
Total population: 33,362
| Kittitas County | Washington | U.S. | |
| Total Households | 13,382, 100% | 2,271,398 | 105,480,101 |
| Average Household Size | 2.33, see rank | 2.53 | 2.59 |
| 1 Person Households | 3,800, 28.40%, see rank | 26.17% | 25.82% |
| 2 or More Person Households | 9,582, 71.60%, see rank | 73.83% | 74.18% |
| Family Households (Families) | 7,787, 58.19%, see rank | 66.00% | 68.06% |
| Average Family Size | 2.90, see rank | 3.07 | 3.14 |
| Married-Couple Family | 6,400, 47.83%, see rank | 52.04% | 51.66% |
| Nonfamily Households | 5,595, 41.81%, 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.