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Washington County Historical Household and Family Data
ACS 2010-2014 data
Total population: 14,527
| Washington County | Illinois | U.S. | |
| Total Households | 5,788, 100% | 4,778,633 | 116,211,092 |
| Average Household Size | 2.46, see rank | 2.63 | 2.63 |
| 1 Person Households | 1,669, 28.84%, see rank | 28.68% | 27.57% |
| 2 or More Person Households | 4,119, 71.16%, see rank | 71.32% | 72.43% |
| Family Households (Families) | 3,951, 68.26%, see rank | 65.52% | 66.22% |
| Average Family Size | 3.08, see rank | 3.36 | 3.32 |
| Married-Couple Family | 3,233, 55.86%, see rank | 48.22% | 48.42% |
| Nonfamily Households | 1,837, 31.74%, see rank | 34.48% | 33.78% |
US Census 2010 data
Total population: 14,716
| Washington County | Illinois | U.S. | |
| Total Households | 5,926, 100% | 4,836,972 | 116,716,292 |
| Average Household Size | 2.44, see rank | 2.59 | 2.58 |
| 1 Person Households | 1,535, 25.90%, see rank | 27.83% | 26.74% |
| 2 or More Person Households | 4,391, 74.10%, see rank | 72.17% | 73.26% |
| Family Households (Families) | 4,112, 69.39%, see rank | 65.81% | 66.43% |
| Average Family Size | 2.93, see rank | 3.20 | 3.14 |
| Married-Couple Family | 3,411, 57.56%, see rank | 48.23% | 48.42% |
| Nonfamily Households | 1,814, 30.61%, see rank | 34.19% | 33.57% |
ACS 2008-2012 data
Total population: 14,692
| Washington County | Illinois | U.S. | |
| Total Households | 6,024, 100% | 4,774,275 | 115,226,802 |
| Average Household Size | 2.39, see rank | 2.62 | 2.61 |
| 1 Person Households | 1,544, 25.63%, see rank | 28.52% | 27.45% |
| 2 or More Person Households | 4,480, 74.37%, see rank | 71.48% | 72.55% |
| Family Households (Families) | 4,246, 70.48%, see rank | 65.82% | 66.47% |
| Average Family Size | 2.91, see rank | 3.34 | 3.29 |
| Married-Couple Family | 3,481, 57.79%, see rank | 48.67% | 48.97% |
| Nonfamily Households | 1,778, 29.52%, see rank | 34.18% | 33.53% |
ACS 2006-2010 data
Total population: 14,841
| Washington County | Illinois | U.S. | |
| Total Households | 6,057, 100% | 4,769,951 | 114,235,996 |
| Average Household Size | 2.40, see rank | 2.61 | 2.59 |
| 1 Person Households | 1,555, 25.67%, see rank | 28.23% | 27.24% |
| 2 or More Person Households | 4,502, 74.33%, see rank | 71.77% | 72.76% |
| Family Households (Families) | 4,273, 70.55%, see rank | 66.28% | 66.75% |
| Average Family Size | 2.92, see rank | 3.31 | 3.25 |
| Married-Couple Family | 3,537, 58.40%, see rank | 49.36% | 49.60% |
| Nonfamily Households | 1,784, 29.45%, see rank | 33.72% | 33.25% |
ACS 2005-2009 data
Total population: 14,725
| Washington County | Illinois | U.S. | |
| Total Households | 6,241, 100% | 4,749,388 | 112,611,029 |
| Average Household Size | 2.28, see rank | 2.62 | 2.60 |
| 1 Person Households | 1,539, 24.66%, see rank | 28.40% | 27.32% |
| 2 or More Person Households | 4,702, 75.34%, see rank | 71.60% | 72.68% |
| Family Households (Families) | 4,378, 70.15%, see rank | 66.09% | 66.67% |
| Average Family Size | 2.77, see rank | 3.34 | 3.27 |
| Married-Couple Family | 3,633, 58.21%, see rank | 49.35% | 49.71% |
| Nonfamily Households | 1,863, 29.85%, see rank | 33.91% | 33.33% |
US Census 2000 data
Total population: 15,148
| Washington County | Illinois | U.S. | |
| Total Households | 5,848, 100% | 4,591,779 | 105,480,101 |
| Average Household Size | 2.55, see rank | 2.63 | 2.59 |
| 1 Person Households | 1,421, 24.30%, see rank | 26.78% | 25.82% |
| 2 or More Person Households | 4,427, 75.70%, see rank | 73.22% | 74.18% |
| Family Households (Families) | 4,242, 72.54%, see rank | 67.63% | 68.06% |
| Average Family Size | 3.02, see rank | 3.23 | 3.14 |
| Married-Couple Family | 3,607, 61.68%, see rank | 51.26% | 51.66% |
| Nonfamily Households | 1,606, 27.46%, 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.