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Rock Island, IL Historical Household and Family Data
ACS 2010-2014 data
Total population: 38,888
| Rock Island, IL | Illinois | U.S. | |
| Total Households | 15,422, 100% | 4,778,633 | 116,211,092 |
| Average Household Size | 2.35, see rank | 2.63 | 2.63 |
| 1 Person Households | 5,716, 37.06%, see rank | 28.68% | 27.57% |
| 2 or More Person Households | 9,706, 62.94%, see rank | 71.32% | 72.43% |
| Family Households (Families) | 8,847, 57.37%, see rank | 65.52% | 66.22% |
| Average Family Size | 3.21, see rank | 3.36 | 3.32 |
| Married-Couple Family | 5,831, 37.81%, see rank | 48.22% | 48.42% |
| Nonfamily Households | 6,575, 42.63%, see rank | 34.48% | 33.78% |
US Census 2010 data
Total population: 39,018
| Rock Island, IL | Illinois | U.S. | |
| Total Households | 15,930, 100% | 4,836,972 | 116,716,292 |
| Average Household Size | 2.30, see rank | 2.59 | 2.58 |
| 1 Person Households | 5,592, 35.10%, see rank | 27.83% | 26.74% |
| 2 or More Person Households | 10,338, 64.90%, see rank | 72.17% | 73.26% |
| Family Households (Families) | 9,211, 57.82%, see rank | 65.81% | 66.43% |
| Average Family Size | 2.97, see rank | 3.20 | 3.14 |
| Married-Couple Family | 6,056, 38.02%, see rank | 48.23% | 48.42% |
| Nonfamily Households | 6,719, 42.18%, see rank | 34.19% | 33.57% |
ACS 2008-2012 data
Total population: 38,808
| Rock Island, IL | Illinois | U.S. | |
| Total Households | 15,519, 100% | 4,774,275 | 115,226,802 |
| Average Household Size | 2.33, see rank | 2.62 | 2.61 |
| 1 Person Households | 5,838, 37.62%, see rank | 28.52% | 27.45% |
| 2 or More Person Households | 9,681, 62.38%, see rank | 71.48% | 72.55% |
| Family Households (Families) | 8,811, 56.78%, see rank | 65.82% | 66.47% |
| Average Family Size | 3.20, see rank | 3.34 | 3.29 |
| Married-Couple Family | 6,005, 38.69%, see rank | 48.67% | 48.97% |
| Nonfamily Households | 6,708, 43.22%, see rank | 34.18% | 33.53% |
ACS 2006-2010 data
Total population: 38,817
| Rock Island, IL | Illinois | U.S. | |
| Total Households | 15,536, 100% | 4,769,951 | 114,235,996 |
| Average Household Size | 2.36, see rank | 2.61 | 2.59 |
| 1 Person Households | 5,714, 36.78%, see rank | 28.23% | 27.24% |
| 2 or More Person Households | 9,822, 63.22%, see rank | 71.77% | 72.76% |
| Family Households (Families) | 9,035, 58.16%, see rank | 66.28% | 66.75% |
| Average Family Size | 3.21, see rank | 3.31 | 3.25 |
| Married-Couple Family | 6,498, 41.83%, see rank | 49.36% | 49.60% |
| Nonfamily Households | 6,501, 41.84%, see rank | 33.72% | 33.25% |
ACS 2005-2009 data
Total population: 38,106
| Rock Island, IL | Illinois | U.S. | |
| Total Households | 15,443, 100% | 4,749,388 | 112,611,029 |
| Average Household Size | 2.30, see rank | 2.62 | 2.60 |
| 1 Person Households | 5,891, 38.15%, see rank | 28.40% | 27.32% |
| 2 or More Person Households | 9,552, 61.85%, see rank | 71.60% | 72.68% |
| Family Households (Families) | 8,703, 56.36%, see rank | 66.09% | 66.67% |
| Average Family Size | 3.18, see rank | 3.34 | 3.27 |
| Married-Couple Family | 6,288, 40.72%, see rank | 49.35% | 49.71% |
| Nonfamily Households | 6,740, 43.64%, see rank | 33.91% | 33.33% |
US Census 2000 data
Total population: 39,684
| Rock Island, IL | Illinois | U.S. | |
| Total Households | 16,148, 100% | 4,591,779 | 105,480,101 |
| Average Household Size | 2.31, see rank | 2.63 | 2.59 |
| 1 Person Households | 5,568, 34.48%, see rank | 26.78% | 25.82% |
| 2 or More Person Households | 10,580, 65.52%, see rank | 73.22% | 74.18% |
| Family Households (Families) | 9,547, 59.12%, see rank | 67.63% | 68.06% |
| Average Family Size | 2.97, see rank | 3.23 | 3.14 |
| Married-Couple Family | 6,650, 41.18%, see rank | 51.26% | 51.66% |
| Nonfamily Households | 6,601, 40.88%, 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.