South Dakota Historical Household and Family Data
ACS 2010-2014 data
Total population: 834,708
| South Dakota | % | U.S. | |
| Total Households | 327,101 | 100% | 116,211,092 |
| Average Household Size | 2.45, see rank | - | 2.63 |
| 1 Person Households | 96,386 | 29.47%, see rank | 27.57% |
| 2 or More Person Households | 230,715 | 70.53%, see rank | 72.43% |
| Family Households (Families) | 210,795 | 64.44%, see rank | 66.22% |
| Average Family Size | 3.11, see rank | - | 3.32 |
| Married-Couple Family | 164,518 | 50.30%, see rank | 48.42% |
| Nonfamily Households | 116,306 | 35.56%, see rank | 33.78% |
US Census 2010 data
Total population: 814,180
| South Dakota | % | U.S. | |
| Total Households | 322,282 | 100% | 116,716,292 |
| Average Household Size | 2.42, see rank | - | 2.58 |
| 1 Person Households | 94,638 | 29.36%, see rank | 26.74% |
| 2 or More Person Households | 227,644 | 70.64%, see rank | 73.26% |
| Family Households (Families) | 206,964 | 64.22%, see rank | 66.43% |
| Average Family Size | 3.00, see rank | - | 3.14 |
| Married-Couple Family | 161,617 | 50.15%, see rank | 48.42% |
| Nonfamily Households | 115,318 | 35.78%, see rank | 33.57% |
ACS 2008-2012 data
Total population: 815,871
| South Dakota | % | U.S. | |
| Total Households | 320,467 | 100% | 115,226,802 |
| Average Household Size | 2.44, see rank | - | 2.61 |
| 1 Person Households | 94,200 | 29.39%, see rank | 27.45% |
| 2 or More Person Households | 226,267 | 70.61%, see rank | 72.55% |
| Family Households (Families) | 207,727 | 64.82%, see rank | 66.47% |
| Average Family Size | 3.10, see rank | - | 3.29 |
| Married-Couple Family | 163,408 | 50.99%, see rank | 48.97% |
| Nonfamily Households | 112,740 | 35.18%, see rank | 33.53% |
ACS 2006-2010 data
Total population: 799,462
| South Dakota | % | U.S. | |
| Total Households | 315,468 | 100% | 114,235,996 |
| Average Household Size | 2.43, see rank | - | 2.59 |
| 1 Person Households | 91,588 | 29.03%, see rank | 27.24% |
| 2 or More Person Households | 223,880 | 70.97%, see rank | 72.76% |
| Family Households (Families) | 205,879 | 65.26%, see rank | 66.75% |
| Average Family Size | 3.07, see rank | - | 3.25 |
| Married-Couple Family | 164,007 | 51.99%, see rank | 49.60% |
| Nonfamily Households | 109,589 | 34.74%, see rank | 33.25% |
ACS 2005-2009 data
Total population: 796,513
| South Dakota | % | U.S. | |
| Total Households | 314,674 | 100% | 112,611,029 |
| Average Household Size | 2.43, see rank | - | 2.60 |
| 1 Person Households | 91,341 | 29.03%, see rank | 27.32% |
| 2 or More Person Households | 223,333 | 70.97%, see rank | 72.68% |
| Family Households (Families) | 205,091 | 65.18%, see rank | 66.67% |
| Average Family Size | 3.08, see rank | - | 3.27 |
| Married-Couple Family | 163,050 | 51.82%, see rank | 49.71% |
| Nonfamily Households | 109,583 | 34.82%, see rank | 33.33% |
US Census 2000 data
Total population: 754,844
| South Dakota | % | U.S. | |
| Total Households | 290,245 | 100% | 105,480,101 |
| Average Household Size | 2.50, see rank | - | 2.59 |
| 1 Person Households | 80,040 | 27.58%, see rank | 25.82% |
| 2 or More Person Households | 210,205 | 72.42%, see rank | 74.18% |
| Family Households (Families) | 194,330 | 66.95%, see rank | 68.06% |
| Average Family Size | 3.07, see rank | - | 3.14 |
| Married-Couple Family | 157,391 | 54.23%, see rank | 51.66% |
| Nonfamily Households | 95,915 | 33.05%, see rank | 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.