Johnson County Historical Household and Family Data
ACS 2010-2014 data
Total population: 12,650
| Johnson County | Illinois | U.S. | |
| Total Households | 4,380, 100% | 4,778,633 | 116,211,092 |
| Average Household Size | 2.45, see rank | 2.63 | 2.63 |
| 1 Person Households | 1,282, 29.27%, see rank | 28.68% | 27.57% |
| 2 or More Person Households | 3,098, 70.73%, see rank | 71.32% | 72.43% |
| Family Households (Families) | 2,977, 67.97%, see rank | 65.52% | 66.22% |
| Average Family Size | 3.06, see rank | 3.36 | 3.32 |
| Married-Couple Family | 2,396, 54.70%, see rank | 48.22% | 48.42% |
| Nonfamily Households | 1,403, 32.03%, see rank | 34.48% | 33.78% |
US Census 2010 data
Total population: 12,582
| Johnson County | Illinois | U.S. | |
| Total Households | 4,584, 100% | 4,836,972 | 116,716,292 |
| Average Household Size | 2.41, see rank | 2.59 | 2.58 |
| 1 Person Households | 1,160, 25.31%, see rank | 27.83% | 26.74% |
| 2 or More Person Households | 3,424, 74.69%, see rank | 72.17% | 73.26% |
| Family Households (Families) | 3,270, 71.34%, see rank | 65.81% | 66.43% |
| Average Family Size | 2.85, see rank | 3.20 | 3.14 |
| Married-Couple Family | 2,713, 59.18%, see rank | 48.23% | 48.42% |
| Nonfamily Households | 1,314, 28.66%, see rank | 34.19% | 33.57% |
ACS 2008-2012 data
Total population: 12,653
| Johnson County | Illinois | U.S. | |
| Total Households | 4,279, 100% | 4,774,275 | 115,226,802 |
| Average Household Size | 2.47, see rank | 2.62 | 2.61 |
| 1 Person Households | 1,223, 28.58%, see rank | 28.52% | 27.45% |
| 2 or More Person Households | 3,056, 71.42%, see rank | 71.48% | 72.55% |
| Family Households (Families) | 2,956, 69.08%, see rank | 65.82% | 66.47% |
| Average Family Size | 3.09, see rank | 3.34 | 3.29 |
| Married-Couple Family | 2,517, 58.82%, see rank | 48.67% | 48.97% |
| Nonfamily Households | 1,323, 30.92%, see rank | 34.18% | 33.53% |
ACS 2006-2010 data
Total population: 12,710
| Johnson County | Illinois | U.S. | |
| Total Households | 4,396, 100% | 4,769,951 | 114,235,996 |
| Average Household Size | 2.24, see rank | 2.61 | 2.59 |
| 1 Person Households | 1,077, 24.50%, see rank | 28.23% | 27.24% |
| 2 or More Person Households | 3,319, 75.50%, see rank | 71.77% | 72.76% |
| Family Households (Families) | 3,141, 71.45%, see rank | 66.28% | 66.75% |
| Average Family Size | 2.71, see rank | 3.31 | 3.25 |
| Married-Couple Family | 2,665, 60.62%, see rank | 49.36% | 49.60% |
| Nonfamily Households | 1,255, 28.55%, see rank | 33.72% | 33.25% |
ACS 2005-2009 data
Total population: 13,653
| Johnson County | Illinois | U.S. | |
| Total Households | 4,329, 100% | 4,749,388 | 112,611,029 |
| Average Household Size | 2.52, see rank | 2.62 | 2.60 |
| 1 Person Households | 1,155, 26.68%, see rank | 28.40% | 27.32% |
| 2 or More Person Households | 3,174, 73.32%, see rank | 71.60% | 72.68% |
| Family Households (Families) | 3,055, 70.57%, see rank | 66.09% | 66.67% |
| Average Family Size | 3.08, see rank | 3.34 | 3.27 |
| Married-Couple Family | 2,657, 61.38%, see rank | 49.35% | 49.71% |
| Nonfamily Households | 1,274, 29.43%, see rank | 33.91% | 33.33% |
US Census 2000 data
Total population: 12,878
| Johnson County | Illinois | U.S. | |
| Total Households | 4,183, 100% | 4,591,779 | 105,480,101 |
| Average Household Size | 2.43, see rank | 2.63 | 2.59 |
| 1 Person Households | 1,011, 24.17%, see rank | 26.78% | 25.82% |
| 2 or More Person Households | 3,172, 75.83%, see rank | 73.22% | 74.18% |
| Family Households (Families) | 3,052, 72.96%, see rank | 67.63% | 68.06% |
| Average Family Size | 2.87, see rank | 3.23 | 3.14 |
| Married-Couple Family | 2,607, 62.32%, see rank | 51.26% | 51.66% |
| Nonfamily Households | 1,131, 27.04%, 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.