Douglas County Historical Household and Family Data
ACS 2010-2014 data
Total population: 19,867
| Douglas County | Illinois | U.S. | |
| Total Households | 7,534, 100% | 4,778,633 | 116,211,092 |
| Average Household Size | 2.61, see rank | 2.63 | 2.63 |
| 1 Person Households | 1,852, 24.58%, see rank | 28.68% | 27.57% |
| 2 or More Person Households | 5,682, 75.42%, see rank | 71.32% | 72.43% |
| Family Households (Families) | 5,286, 70.16%, see rank | 65.52% | 66.22% |
| Average Family Size | 3.20, see rank | 3.36 | 3.32 |
| Married-Couple Family | 4,201, 55.76%, see rank | 48.22% | 48.42% |
| Nonfamily Households | 2,248, 29.84%, see rank | 34.48% | 33.78% |
US Census 2010 data
Total population: 19,980
| Douglas County | Illinois | U.S. | |
| Total Households | 7,720, 100% | 4,836,972 | 116,716,292 |
| Average Household Size | 2.57, see rank | 2.59 | 2.58 |
| 1 Person Households | 2,017, 26.13%, see rank | 27.83% | 26.74% |
| 2 or More Person Households | 5,703, 73.87%, see rank | 72.17% | 73.26% |
| Family Households (Families) | 5,377, 69.65%, see rank | 65.81% | 66.43% |
| Average Family Size | 3.11, see rank | 3.20 | 3.14 |
| Married-Couple Family | 4,402, 57.02%, see rank | 48.23% | 48.42% |
| Nonfamily Households | 2,343, 30.35%, see rank | 34.19% | 33.57% |
ACS 2008-2012 data
Total population: 19,908
| Douglas County | Illinois | U.S. | |
| Total Households | 7,613, 100% | 4,774,275 | 115,226,802 |
| Average Household Size | 2.58, see rank | 2.62 | 2.61 |
| 1 Person Households | 1,923, 25.26%, see rank | 28.52% | 27.45% |
| 2 or More Person Households | 5,690, 74.74%, see rank | 71.48% | 72.55% |
| Family Households (Families) | 5,380, 70.67%, see rank | 65.82% | 66.47% |
| Average Family Size | 3.17, see rank | 3.34 | 3.29 |
| Married-Couple Family | 4,321, 56.76%, see rank | 48.67% | 48.97% |
| Nonfamily Households | 2,233, 29.33%, see rank | 34.18% | 33.53% |
ACS 2006-2010 data
Total population: 20,012
| Douglas County | Illinois | U.S. | |
| Total Households | 7,572, 100% | 4,769,951 | 114,235,996 |
| Average Household Size | 2.61, see rank | 2.61 | 2.59 |
| 1 Person Households | 1,920, 25.36%, see rank | 28.23% | 27.24% |
| 2 or More Person Households | 5,652, 74.64%, see rank | 71.77% | 72.76% |
| Family Households (Families) | 5,361, 70.80%, see rank | 66.28% | 66.75% |
| Average Family Size | 3.20, see rank | 3.31 | 3.25 |
| Married-Couple Family | 4,331, 57.20%, see rank | 49.36% | 49.60% |
| Nonfamily Households | 2,211, 29.20%, see rank | 33.72% | 33.25% |
ACS 2005-2009 data
Total population: 19,436
| Douglas County | Illinois | U.S. | |
| Total Households | 7,596, 100% | 4,749,388 | 112,611,029 |
| Average Household Size | 2.52, see rank | 2.62 | 2.60 |
| 1 Person Households | 2,043, 26.90%, see rank | 28.40% | 27.32% |
| 2 or More Person Households | 5,553, 73.10%, see rank | 71.60% | 72.68% |
| Family Households (Families) | 5,287, 69.60%, see rank | 66.09% | 66.67% |
| Average Family Size | 3.12, see rank | 3.34 | 3.27 |
| Married-Couple Family | 4,411, 58.07%, see rank | 49.35% | 49.71% |
| Nonfamily Households | 2,309, 30.40%, see rank | 33.91% | 33.33% |
US Census 2000 data
Total population: 19,922
| Douglas County | Illinois | U.S. | |
| Total Households | 7,574, 100% | 4,591,779 | 105,480,101 |
| Average Household Size | 2.59, see rank | 2.63 | 2.59 |
| 1 Person Households | 1,873, 24.73%, see rank | 26.78% | 25.82% |
| 2 or More Person Households | 5,701, 75.27%, see rank | 73.22% | 74.18% |
| Family Households (Families) | 5,476, 72.30%, see rank | 67.63% | 68.06% |
| Average Family Size | 3.10, see rank | 3.23 | 3.14 |
| Married-Couple Family | 4,631, 61.14%, see rank | 51.26% | 51.66% |
| Nonfamily Households | 2,098, 27.70%, 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.