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Duncan, SC Historical Household and Family Data
ACS 2010-2014 data
Total population: 3,214
| Duncan, SC | South Carolina | U.S. | |
| Total Households | 1,323, 100% | 1,795,715 | 116,211,092 |
| Average Household Size | 2.41, see rank | 2.56 | 2.63 |
| 1 Person Households | 413, 31.22%, see rank | 27.77% | 27.57% |
| 2 or More Person Households | 910, 68.78%, see rank | 72.23% | 72.43% |
| Family Households (Families) | 841, 63.57%, see rank | 67.06% | 66.22% |
| Average Family Size | 3.01, see rank | 3.20 | 3.32 |
| Married-Couple Family | 536, 40.51%, see rank | 47.27% | 48.42% |
| Nonfamily Households | 482, 36.43%, see rank | 32.94% | 33.78% |
US Census 2010 data
Total population: 3,181
| Duncan, SC | South Carolina | U.S. | |
| Total Households | 1,236, 100% | 1,801,181 | 116,716,292 |
| Average Household Size | 2.56, see rank | 2.49 | 2.58 |
| 1 Person Households | 337, 27.27%, see rank | 26.53% | 26.74% |
| 2 or More Person Households | 899, 72.73%, see rank | 73.47% | 73.26% |
| Family Households (Families) | 847, 68.53%, see rank | 67.53% | 66.43% |
| Average Family Size | 3.08, see rank | 3.01 | 3.14 |
| Married-Couple Family | 443, 35.84%, see rank | 47.19% | 48.42% |
| Nonfamily Households | 389, 31.47%, see rank | 32.47% | 33.57% |
ACS 2008-2012 data
Total population: 3,173
| Duncan, SC | South Carolina | U.S. | |
| Total Households | 1,429, 100% | 1,768,255 | 115,226,802 |
| Average Household Size | 2.21, see rank | 2.54 | 2.61 |
| 1 Person Households | 577, 40.38%, see rank | 27.51% | 27.45% |
| 2 or More Person Households | 852, 59.62%, see rank | 72.49% | 72.55% |
| Family Households (Families) | 763, 53.39%, see rank | 67.41% | 66.47% |
| Average Family Size | 3.10, see rank | 3.17 | 3.29 |
| Married-Couple Family | 487, 34.08%, see rank | 47.97% | 48.97% |
| Nonfamily Households | 666, 46.61%, see rank | 32.59% | 33.53% |
ACS 2006-2010 data
Total population: 3,099
| Duncan, SC | South Carolina | U.S. | |
| Total Households | 1,307, 100% | 1,741,994 | 114,235,996 |
| Average Household Size | 2.37, see rank | 2.51 | 2.59 |
| 1 Person Households | 447, 34.20%, see rank | 27.48% | 27.24% |
| 2 or More Person Households | 860, 65.80%, see rank | 72.52% | 72.76% |
| Family Households (Families) | 746, 57.08%, see rank | 67.39% | 66.75% |
| Average Family Size | 3.19, see rank | 3.13 | 3.25 |
| Married-Couple Family | 471, 36.04%, see rank | 48.27% | 49.60% |
| Nonfamily Households | 561, 42.92%, see rank | 32.61% | 33.25% |
ACS 2005-2009 data
Total population: 3,126
| Duncan, SC | South Carolina | U.S. | |
| Total Households | 1,422, 100% | 1,693,388 | 112,611,029 |
| Average Household Size | 2.20, see rank | 2.52 | 2.60 |
| 1 Person Households | 557, 39.17%, see rank | 27.56% | 27.32% |
| 2 or More Person Households | 865, 60.83%, see rank | 72.44% | 72.68% |
| Family Households (Families) | 787, 55.34%, see rank | 67.35% | 66.67% |
| Average Family Size | 3.02, see rank | 3.15 | 3.27 |
| Married-Couple Family | 437, 30.73%, see rank | 48.41% | 49.71% |
| Nonfamily Households | 635, 44.66%, see rank | 32.65% | 33.33% |
US Census 2000 data
Total population: 2,870
| Duncan, SC | South Carolina | U.S. | |
| Total Households | 1,125, 100% | 1,533,854 | 105,480,101 |
| Average Household Size | 2.54, see rank | 2.53 | 2.59 |
| 1 Person Households | 273, 24.27%, see rank | 24.98% | 25.82% |
| 2 or More Person Households | 852, 75.73%, see rank | 75.02% | 74.18% |
| Family Households (Families) | 811, 72.09%, see rank | 69.94% | 68.06% |
| Average Family Size | 2.96, see rank | 3.02 | 3.14 |
| Married-Couple Family | 431, 38.31%, see rank | 51.06% | 51.66% |
| Nonfamily Households | 314, 27.91%, see rank | 30.06% | 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.