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Watertown, SD Historical Household and Family Data
ACS 2010-2014 data
Total population: 21,795
| Watertown, SD | South Dakota | U.S. | |
| Total Households | 9,335, 100% | 327,101 | 116,211,092 |
| Average Household Size | 2.28, see rank | 2.45 | 2.63 |
| 1 Person Households | 3,217, 34.46%, see rank | 29.47% | 27.57% |
| 2 or More Person Households | 6,118, 65.54%, see rank | 70.53% | 72.43% |
| Family Households (Families) | 5,397, 57.81%, see rank | 64.44% | 66.22% |
| Average Family Size | 3.03, see rank | 3.11 | 3.32 |
| Married-Couple Family | 3,984, 42.68%, see rank | 50.30% | 48.42% |
| Nonfamily Households | 3,938, 42.19%, see rank | 35.56% | 33.78% |
US Census 2010 data
Total population: 21,482
| Watertown, SD | South Dakota | U.S. | |
| Total Households | 9,278, 100% | 322,282 | 116,716,292 |
| Average Household Size | 2.28, see rank | 2.42 | 2.58 |
| 1 Person Households | 3,065, 33.04%, see rank | 29.36% | 26.74% |
| 2 or More Person Households | 6,213, 66.96%, see rank | 70.64% | 73.26% |
| Family Households (Families) | 5,563, 59.96%, see rank | 64.22% | 66.43% |
| Average Family Size | 2.90, see rank | 3.00 | 3.14 |
| Married-Couple Family | 4,238, 45.68%, see rank | 50.15% | 48.42% |
| Nonfamily Households | 3,715, 40.04%, see rank | 35.78% | 33.57% |
ACS 2008-2012 data
Total population: 21,524
| Watertown, SD | South Dakota | U.S. | |
| Total Households | 9,263, 100% | 320,467 | 115,226,802 |
| Average Household Size | 2.27, see rank | 2.44 | 2.61 |
| 1 Person Households | 3,147, 33.97%, see rank | 29.39% | 27.45% |
| 2 or More Person Households | 6,116, 66.03%, see rank | 70.61% | 72.55% |
| Family Households (Families) | 5,406, 58.36%, see rank | 64.82% | 66.47% |
| Average Family Size | 3.00, see rank | 3.10 | 3.29 |
| Married-Couple Family | 3,978, 42.95%, see rank | 50.99% | 48.97% |
| Nonfamily Households | 3,857, 41.64%, see rank | 35.18% | 33.53% |
ACS 2006-2010 data
Total population: 21,318
| Watertown, SD | South Dakota | U.S. | |
| Total Households | 9,080, 100% | 315,468 | 114,235,996 |
| Average Household Size | 2.30, see rank | 2.43 | 2.59 |
| 1 Person Households | 3,095, 34.09%, see rank | 29.03% | 27.24% |
| 2 or More Person Households | 5,985, 65.91%, see rank | 70.97% | 72.76% |
| Family Households (Families) | 5,486, 60.42%, see rank | 65.26% | 66.75% |
| Average Family Size | 3.00, see rank | 3.07 | 3.25 |
| Married-Couple Family | 4,454, 49.05%, see rank | 51.99% | 49.60% |
| Nonfamily Households | 3,594, 39.58%, see rank | 34.74% | 33.25% |
ACS 2005-2009 data
Total population: 20,355
| Watertown, SD | South Dakota | U.S. | |
| Total Households | 9,152, 100% | 314,674 | 112,611,029 |
| Average Household Size | 2.19, see rank | 2.43 | 2.60 |
| 1 Person Households | 3,111, 33.99%, see rank | 29.03% | 27.32% |
| 2 or More Person Households | 6,041, 66.01%, see rank | 70.97% | 72.68% |
| Family Households (Families) | 5,418, 59.20%, see rank | 65.18% | 66.67% |
| Average Family Size | 2.87, see rank | 3.08 | 3.27 |
| Married-Couple Family | 4,259, 46.54%, see rank | 51.82% | 49.71% |
| Nonfamily Households | 3,734, 40.80%, see rank | 34.82% | 33.33% |
US Census 2000 data
Total population: 20,237
| Watertown, SD | South Dakota | U.S. | |
| Total Households | 8,385, 100% | 290,245 | 105,480,101 |
| Average Household Size | 2.37, see rank | 2.50 | 2.59 |
| 1 Person Households | 2,559, 30.52%, see rank | 27.58% | 25.82% |
| 2 or More Person Households | 5,826, 69.48%, see rank | 72.42% | 74.18% |
| Family Households (Families) | 5,291, 63.10%, see rank | 66.95% | 68.06% |
| Average Family Size | 2.98, see rank | 3.07 | 3.14 |
| Married-Couple Family | 4,245, 50.63%, see rank | 54.23% | 51.66% |
| Nonfamily Households | 3,094, 36.90%, see rank | 33.05% | 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.