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Richland County Historical Household and Family Data
ACS 2010-2014 data
Total population: 393,707
| Richland County | South Carolina | U.S. | |
| Total Households | 144,647, 100% | 1,795,715 | 116,211,092 |
| Average Household Size | 2.51, see rank | 2.56 | 2.63 |
| 1 Person Households | 45,763, 31.64%, see rank | 27.77% | 27.57% |
| 2 or More Person Households | 98,884, 68.36%, see rank | 72.23% | 72.43% |
| Family Households (Families) | 88,161, 60.95%, see rank | 67.06% | 66.22% |
| Average Family Size | 3.25, see rank | 3.20 | 3.32 |
| Married-Couple Family | 57,233, 39.57%, see rank | 47.27% | 48.42% |
| Nonfamily Households | 56,486, 39.05%, see rank | 32.94% | 33.78% |
US Census 2010 data
Total population: 384,504
| Richland County | South Carolina | U.S. | |
| Total Households | 145,194, 100% | 1,801,181 | 116,716,292 |
| Average Household Size | 2.43, see rank | 2.49 | 2.58 |
| 1 Person Households | 43,828, 30.19%, see rank | 26.53% | 26.74% |
| 2 or More Person Households | 101,366, 69.81%, see rank | 73.47% | 73.26% |
| Family Households (Families) | 89,357, 61.54%, see rank | 67.53% | 66.43% |
| Average Family Size | 3.05, see rank | 3.01 | 3.14 |
| Married-Couple Family | 57,541, 39.63%, see rank | 47.19% | 48.42% |
| Nonfamily Households | 55,837, 38.46%, see rank | 32.47% | 33.57% |
ACS 2008-2012 data
Total population: 384,596
| Richland County | South Carolina | U.S. | |
| Total Households | 143,212, 100% | 1,768,255 | 115,226,802 |
| Average Household Size | 2.48, see rank | 2.54 | 2.61 |
| 1 Person Households | 44,495, 31.07%, see rank | 27.51% | 27.45% |
| 2 or More Person Households | 98,717, 68.93%, see rank | 72.49% | 72.55% |
| Family Households (Families) | 87,925, 61.39%, see rank | 67.41% | 66.47% |
| Average Family Size | 3.20, see rank | 3.17 | 3.29 |
| Married-Couple Family | 57,707, 40.29%, see rank | 47.97% | 48.97% |
| Nonfamily Households | 55,287, 38.61%, see rank | 32.59% | 33.53% |
ACS 2006-2010 data
Total population: 372,597
| Richland County | South Carolina | U.S. | |
| Total Households | 141,564, 100% | 1,741,994 | 114,235,996 |
| Average Household Size | 2.43, see rank | 2.51 | 2.59 |
| 1 Person Households | 44,709, 31.58%, see rank | 27.48% | 27.24% |
| 2 or More Person Households | 96,855, 68.42%, see rank | 72.52% | 72.76% |
| Family Households (Families) | 86,609, 61.18%, see rank | 67.39% | 66.75% |
| Average Family Size | 3.15, see rank | 3.13 | 3.25 |
| Married-Couple Family | 57,617, 40.70%, see rank | 48.27% | 49.60% |
| Nonfamily Households | 54,955, 38.82%, see rank | 32.61% | 33.25% |
ACS 2005-2009 data
Total population: 359,144
| Richland County | South Carolina | U.S. | |
| Total Households | 137,279, 100% | 1,693,388 | 112,611,029 |
| Average Household Size | 2.41, see rank | 2.52 | 2.60 |
| 1 Person Households | 44,390, 32.34%, see rank | 27.56% | 27.32% |
| 2 or More Person Households | 92,889, 67.66%, see rank | 72.44% | 72.68% |
| Family Households (Families) | 83,899, 61.12%, see rank | 67.35% | 66.67% |
| Average Family Size | 3.15, see rank | 3.15 | 3.27 |
| Married-Couple Family | 56,705, 41.31%, see rank | 48.41% | 49.71% |
| Nonfamily Households | 53,380, 38.88%, see rank | 32.65% | 33.33% |
US Census 2000 data
Total population: 320,677
| Richland County | South Carolina | U.S. | |
| Total Households | 120,101, 100% | 1,533,854 | 105,480,101 |
| Average Household Size | 2.44, see rank | 2.53 | 2.59 |
| 1 Person Households | 34,990, 29.13%, see rank | 24.98% | 25.82% |
| 2 or More Person Households | 85,111, 70.87%, see rank | 75.02% | 74.18% |
| Family Households (Families) | 76,378, 63.59%, see rank | 69.94% | 68.06% |
| Average Family Size | 3.05, see rank | 3.02 | 3.14 |
| Married-Couple Family | 52,505, 43.72%, see rank | 51.06% | 51.66% |
| Nonfamily Households | 43,723, 36.41%, 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.