Winnebago County Historical Household and Family Data
ACS 2010-2014 data
Total population: 292,026
| Winnebago County | Illinois | U.S. | |
| Total Households | 113,553, 100% | 4,778,633 | 116,211,092 |
| Average Household Size | 2.53, see rank | 2.63 | 2.63 |
| 1 Person Households | 32,865, 28.94%, see rank | 28.68% | 27.57% |
| 2 or More Person Households | 80,688, 71.06%, see rank | 71.32% | 72.43% |
| Family Households (Families) | 74,813, 65.88%, see rank | 65.52% | 66.22% |
| Average Family Size | 3.22, see rank | 3.36 | 3.32 |
| Married-Couple Family | 52,683, 46.40%, see rank | 48.22% | 48.42% |
| Nonfamily Households | 38,740, 34.12%, see rank | 34.48% | 33.78% |
US Census 2010 data
Total population: 295,266
| Winnebago County | Illinois | U.S. | |
| Total Households | 115,501, 100% | 4,836,972 | 116,716,292 |
| Average Household Size | 2.52, see rank | 2.59 | 2.58 |
| 1 Person Households | 31,943, 27.66%, see rank | 27.83% | 26.74% |
| 2 or More Person Households | 83,558, 72.34%, see rank | 72.17% | 73.26% |
| Family Households (Families) | 76,854, 66.54%, see rank | 65.81% | 66.43% |
| Average Family Size | 3.07, see rank | 3.20 | 3.14 |
| Married-Couple Family | 54,632, 47.30%, see rank | 48.23% | 48.42% |
| Nonfamily Households | 38,647, 33.46%, see rank | 34.19% | 33.57% |
ACS 2008-2012 data
Total population: 294,433
| Winnebago County | Illinois | U.S. | |
| Total Households | 113,119, 100% | 4,774,275 | 115,226,802 |
| Average Household Size | 2.56, see rank | 2.62 | 2.61 |
| 1 Person Households | 32,649, 28.86%, see rank | 28.52% | 27.45% |
| 2 or More Person Households | 80,470, 71.14%, see rank | 71.48% | 72.55% |
| Family Households (Families) | 74,378, 65.75%, see rank | 65.82% | 66.47% |
| Average Family Size | 3.26, see rank | 3.34 | 3.29 |
| Married-Couple Family | 53,499, 47.29%, see rank | 48.67% | 48.97% |
| Nonfamily Households | 38,741, 34.25%, see rank | 34.18% | 33.53% |
ACS 2006-2010 data
Total population: 293,972
| Winnebago County | Illinois | U.S. | |
| Total Households | 112,466, 100% | 4,769,951 | 114,235,996 |
| Average Household Size | 2.56, see rank | 2.61 | 2.59 |
| 1 Person Households | 31,778, 28.26%, see rank | 28.23% | 27.24% |
| 2 or More Person Households | 80,688, 71.74%, see rank | 71.77% | 72.76% |
| Family Households (Families) | 75,014, 66.70%, see rank | 66.28% | 66.75% |
| Average Family Size | 3.24, see rank | 3.31 | 3.25 |
| Married-Couple Family | 55,169, 49.05%, see rank | 49.36% | 49.60% |
| Nonfamily Households | 37,452, 33.30%, see rank | 33.72% | 33.25% |
ACS 2005-2009 data
Total population: 295,803
| Winnebago County | Illinois | U.S. | |
| Total Households | 111,144, 100% | 4,749,388 | 112,611,029 |
| Average Household Size | 2.60, see rank | 2.62 | 2.60 |
| 1 Person Households | 31,855, 28.66%, see rank | 28.40% | 27.32% |
| 2 or More Person Households | 79,289, 71.34%, see rank | 71.60% | 72.68% |
| Family Households (Families) | 73,773, 66.38%, see rank | 66.09% | 66.67% |
| Average Family Size | 3.31, see rank | 3.34 | 3.27 |
| Married-Couple Family | 54,627, 49.15%, see rank | 49.35% | 49.71% |
| Nonfamily Households | 37,371, 33.62%, see rank | 33.91% | 33.33% |
US Census 2000 data
Total population: 278,418
| Winnebago County | Illinois | U.S. | |
| Total Households | 107,980, 100% | 4,591,779 | 105,480,101 |
| Average Household Size | 2.53, see rank | 2.63 | 2.59 |
| 1 Person Households | 28,401, 26.30%, see rank | 26.78% | 25.82% |
| 2 or More Person Households | 79,579, 73.70%, see rank | 73.22% | 74.18% |
| Family Households (Families) | 73,666, 68.22%, see rank | 67.63% | 68.06% |
| Average Family Size | 3.06, see rank | 3.23 | 3.14 |
| Married-Couple Family | 56,423, 52.25%, see rank | 51.26% | 51.66% |
| Nonfamily Households | 34,314, 31.78%, 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.