Mercer County Historical Household and Family Data
ACS 2010-2014 data
Total population: 16,204
| Mercer County | Illinois | U.S. | |
| Total Households | 6,662, 100% | 4,778,633 | 116,211,092 |
| Average Household Size | 2.40, see rank | 2.63 | 2.63 |
| 1 Person Households | 1,675, 25.14%, see rank | 28.68% | 27.57% |
| 2 or More Person Households | 4,987, 74.86%, see rank | 71.32% | 72.43% |
| Family Households (Families) | 4,723, 70.89%, see rank | 65.52% | 66.22% |
| Average Family Size | 2.91, see rank | 3.36 | 3.32 |
| Married-Couple Family | 3,777, 56.69%, see rank | 48.22% | 48.42% |
| Nonfamily Households | 1,939, 29.11%, see rank | 34.48% | 33.78% |
US Census 2010 data
Total population: 16,434
| Mercer County | Illinois | U.S. | |
| Total Households | 6,734, 100% | 4,836,972 | 116,716,292 |
| Average Household Size | 2.41, see rank | 2.59 | 2.58 |
| 1 Person Households | 1,739, 25.82%, see rank | 27.83% | 26.74% |
| 2 or More Person Households | 4,995, 74.18%, see rank | 72.17% | 73.26% |
| Family Households (Families) | 4,724, 70.15%, see rank | 65.81% | 66.43% |
| Average Family Size | 2.88, see rank | 3.20 | 3.14 |
| Married-Couple Family | 3,924, 58.27%, see rank | 48.23% | 48.42% |
| Nonfamily Households | 2,010, 29.85%, see rank | 34.19% | 33.57% |
ACS 2008-2012 data
Total population: 16,421
| Mercer County | Illinois | U.S. | |
| Total Households | 6,768, 100% | 4,774,275 | 115,226,802 |
| Average Household Size | 2.40, see rank | 2.62 | 2.61 |
| 1 Person Households | 1,535, 22.68%, see rank | 28.52% | 27.45% |
| 2 or More Person Households | 5,233, 77.32%, see rank | 71.48% | 72.55% |
| Family Households (Families) | 4,954, 73.20%, see rank | 65.82% | 66.47% |
| Average Family Size | 2.85, see rank | 3.34 | 3.29 |
| Married-Couple Family | 3,936, 58.16%, see rank | 48.67% | 48.97% |
| Nonfamily Households | 1,814, 26.80%, see rank | 34.18% | 33.53% |
ACS 2006-2010 data
Total population: 16,551
| Mercer County | Illinois | U.S. | |
| Total Households | 6,862, 100% | 4,769,951 | 114,235,996 |
| Average Household Size | 2.36, see rank | 2.61 | 2.59 |
| 1 Person Households | 1,411, 20.56%, see rank | 28.23% | 27.24% |
| 2 or More Person Households | 5,451, 79.44%, see rank | 71.77% | 72.76% |
| Family Households (Families) | 5,152, 75.08%, see rank | 66.28% | 66.75% |
| Average Family Size | 2.76, see rank | 3.31 | 3.25 |
| Married-Couple Family | 4,128, 60.16%, see rank | 49.36% | 49.60% |
| Nonfamily Households | 1,710, 24.92%, see rank | 33.72% | 33.25% |
ACS 2005-2009 data
Total population: 16,440
| Mercer County | Illinois | U.S. | |
| Total Households | 6,714, 100% | 4,749,388 | 112,611,029 |
| Average Household Size | 2.40, see rank | 2.62 | 2.60 |
| 1 Person Households | 1,502, 22.37%, see rank | 28.40% | 27.32% |
| 2 or More Person Households | 5,212, 77.63%, see rank | 71.60% | 72.68% |
| Family Households (Families) | 4,876, 72.62%, see rank | 66.09% | 66.67% |
| Average Family Size | 2.85, see rank | 3.34 | 3.27 |
| Married-Couple Family | 4,047, 60.28%, see rank | 49.35% | 49.71% |
| Nonfamily Households | 1,838, 27.38%, see rank | 33.91% | 33.33% |
US Census 2000 data
Total population: 16,957
| Mercer County | Illinois | U.S. | |
| Total Households | 6,624, 100% | 4,591,779 | 105,480,101 |
| Average Household Size | 2.53, see rank | 2.63 | 2.59 |
| 1 Person Households | 1,510, 22.80%, see rank | 26.78% | 25.82% |
| 2 or More Person Households | 5,114, 77.20%, see rank | 73.22% | 74.18% |
| Family Households (Families) | 4,914, 74.18%, see rank | 67.63% | 68.06% |
| Average Family Size | 2.96, see rank | 3.23 | 3.14 |
| Married-Couple Family | 4,209, 63.54%, see rank | 51.26% | 51.66% |
| Nonfamily Households | 1,710, 25.82%, 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.