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Rock Island County Historical Household and Family Data
ACS 2010-2014 data
Total population: 146,964
| Rock Island County | Illinois | U.S. | |
| Total Households | 60,367, 100% | 4,778,633 | 116,211,092 |
| Average Household Size | 2.36, see rank | 2.63 | 2.63 |
| 1 Person Households | 20,276, 33.59%, see rank | 28.68% | 27.57% |
| 2 or More Person Households | 40,091, 66.41%, see rank | 71.32% | 72.43% |
| Family Households (Families) | 37,351, 61.87%, see rank | 65.52% | 66.22% |
| Average Family Size | 3.10, see rank | 3.36 | 3.32 |
| Married-Couple Family | 27,060, 44.83%, see rank | 48.22% | 48.42% |
| Nonfamily Households | 23,016, 38.13%, see rank | 34.48% | 33.78% |
US Census 2010 data
Total population: 147,546
| Rock Island County | Illinois | U.S. | |
| Total Households | 61,303, 100% | 4,836,972 | 116,716,292 |
| Average Household Size | 2.34, see rank | 2.59 | 2.58 |
| 1 Person Households | 19,392, 31.63%, see rank | 27.83% | 26.74% |
| 2 or More Person Households | 41,911, 68.37%, see rank | 72.17% | 73.26% |
| Family Households (Families) | 38,384, 62.61%, see rank | 65.81% | 66.43% |
| Average Family Size | 2.93, see rank | 3.20 | 3.14 |
| Married-Couple Family | 27,743, 45.26%, see rank | 48.23% | 48.42% |
| Nonfamily Households | 22,919, 37.39%, see rank | 34.19% | 33.57% |
ACS 2008-2012 data
Total population: 147,504
| Rock Island County | Illinois | U.S. | |
| Total Households | 60,670, 100% | 4,774,275 | 115,226,802 |
| Average Household Size | 2.36, see rank | 2.62 | 2.61 |
| 1 Person Households | 20,358, 33.56%, see rank | 28.52% | 27.45% |
| 2 or More Person Households | 40,312, 66.44%, see rank | 71.48% | 72.55% |
| Family Households (Families) | 37,488, 61.79%, see rank | 65.82% | 66.47% |
| Average Family Size | 3.10, see rank | 3.34 | 3.29 |
| Married-Couple Family | 27,632, 45.54%, see rank | 48.67% | 48.97% |
| Nonfamily Households | 23,182, 38.21%, see rank | 34.18% | 33.53% |
ACS 2006-2010 data
Total population: 147,524
| Rock Island County | Illinois | U.S. | |
| Total Households | 60,454, 100% | 4,769,951 | 114,235,996 |
| Average Household Size | 2.37, see rank | 2.61 | 2.59 |
| 1 Person Households | 19,570, 32.37%, see rank | 28.23% | 27.24% |
| 2 or More Person Households | 40,884, 67.63%, see rank | 71.77% | 72.76% |
| Family Households (Families) | 38,063, 62.96%, see rank | 66.28% | 66.75% |
| Average Family Size | 3.07, see rank | 3.31 | 3.25 |
| Married-Couple Family | 28,484, 47.12%, see rank | 49.36% | 49.60% |
| Nonfamily Households | 22,391, 37.04%, see rank | 33.72% | 33.25% |
ACS 2005-2009 data
Total population: 146,670
| Rock Island County | Illinois | U.S. | |
| Total Households | 60,300, 100% | 4,749,388 | 112,611,029 |
| Average Household Size | 2.35, see rank | 2.62 | 2.60 |
| 1 Person Households | 19,676, 32.63%, see rank | 28.40% | 27.32% |
| 2 or More Person Households | 40,624, 67.37%, see rank | 71.60% | 72.68% |
| Family Households (Families) | 37,590, 62.34%, see rank | 66.09% | 66.67% |
| Average Family Size | 3.06, see rank | 3.34 | 3.27 |
| Married-Couple Family | 28,179, 46.73%, see rank | 49.35% | 49.71% |
| Nonfamily Households | 22,710, 37.66%, see rank | 33.91% | 33.33% |
US Census 2000 data
Total population: 149,374
| Rock Island County | Illinois | U.S. | |
| Total Households | 60,712, 100% | 4,591,779 | 105,480,101 |
| Average Household Size | 2.38, see rank | 2.63 | 2.59 |
| 1 Person Households | 18,328, 30.19%, see rank | 26.78% | 25.82% |
| 2 or More Person Households | 42,384, 69.81%, see rank | 73.22% | 74.18% |
| Family Households (Families) | 39,162, 64.50%, see rank | 67.63% | 68.06% |
| Average Family Size | 2.97, see rank | 3.23 | 3.14 |
| Married-Couple Family | 29,826, 49.13%, see rank | 51.26% | 51.66% |
| Nonfamily Households | 21,550, 35.50%, see rank | 32.37% | 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.