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57021 Zip Code Historical Household and Family Data
ACS 2010-2014 data
Total population: 370
| 57021 Zip Code | South Dakota | U.S. | |
| Total Households | 133, 100% | 327,101 | 116,211,092 |
| Average Household Size | 2.78, see rank | 2.45 | 2.63 |
| 1 Person Households | 27, 20.30%, see rank | 29.47% | 27.57% |
| 2 or More Person Households | 106, 79.70%, see rank | 70.53% | 72.43% |
| Family Households (Families) | 102, 76.69%, see rank | 64.44% | 66.22% |
| Average Family Size | 3.29, see rank | 3.11 | 3.32 |
| Married-Couple Family | 91, 68.42%, see rank | 50.30% | 48.42% |
| Nonfamily Households | 31, 23.31%, see rank | 35.56% | 33.78% |
US Census 2010 data
Total population: 276
| 57021 Zip Code | South Dakota | U.S. | |
| Total Households | 118, 100% | 322,282 | 116,716,292 |
| Average Household Size | 2.34, see rank | 2.42 | 2.58 |
| 1 Person Households | 32, 27.12%, see rank | 29.36% | 26.74% |
| 2 or More Person Households | 86, 72.88%, see rank | 70.64% | 73.26% |
| Family Households (Families) | 78, 66.10%, see rank | 64.22% | 66.43% |
| Average Family Size | 2.86, see rank | 3.00 | 3.14 |
| Married-Couple Family | 70, 59.32%, see rank | 50.15% | 48.42% |
| Nonfamily Households | 40, 33.90%, see rank | 35.78% | 33.57% |
ACS 2008-2012 data
Total population: 372
| 57021 Zip Code | South Dakota | U.S. | |
| Total Households | 136, 100% | 320,467 | 115,226,802 |
| Average Household Size | 2.74, see rank | 2.44 | 2.61 |
| 1 Person Households | 42, 30.88%, see rank | 29.39% | 27.45% |
| 2 or More Person Households | 94, 69.12%, see rank | 70.61% | 72.55% |
| Family Households (Families) | 93, 68.38%, see rank | 64.82% | 66.47% |
| Average Family Size | 3.52, see rank | 3.10 | 3.29 |
| Married-Couple Family | 88, 64.71%, see rank | 50.99% | 48.97% |
| Nonfamily Households | 43, 31.62%, see rank | 35.18% | 33.53% |
US Census 2000 data
Total population: 295
| 57021 Zip Code | South Dakota | U.S. | |
| Total Households | 123, 100% | 290,245 | 105,480,101 |
| Average Household Size | 2.40, see rank | 2.50 | 2.59 |
| 1 Person Households | 33, 26.83%, see rank | 27.58% | 25.82% |
| 2 or More Person Households | 90, 73.17%, see rank | 72.42% | 74.18% |
| Family Households (Families) | 83, 67.48%, see rank | 66.95% | 68.06% |
| Average Family Size | 2.96, see rank | 3.07 | 3.14 |
| Married-Couple Family | 77, 62.60%, see rank | 54.23% | 51.66% |
| Nonfamily Households | 40, 32.52%, 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.