Illinois Historical Household and Family Data
ACS 2010-2014 data
Total population: 12,868,747
Illinois | % | U.S. | |
Total Households | 4,778,633 | 100% | 116,211,092 |
Average Household Size | 2.63, see rank | - | 2.63 |
1 Person Households | 1,370,502 | 28.68%, see rank | 27.57% |
2 or More Person Households | 3,408,131 | 71.32%, see rank | 72.43% |
Family Households (Families) | 3,131,125 | 65.52%, see rank | 66.22% |
Average Family Size | 3.36, see rank | - | 3.32 |
Married-Couple Family | 2,304,148 | 48.22%, see rank | 48.42% |
Nonfamily Households | 1,647,508 | 34.48%, see rank | 33.78% |
US Census 2010 data
Total population: 12,830,632
Illinois | % | U.S. | |
Total Households | 4,836,972 | 100% | 116,716,292 |
Average Household Size | 2.59, see rank | - | 2.58 |
1 Person Households | 1,346,312 | 27.83%, see rank | 26.74% |
2 or More Person Households | 3,490,660 | 72.17%, see rank | 73.26% |
Family Households (Families) | 3,182,984 | 65.81%, see rank | 66.43% |
Average Family Size | 3.20, see rank | - | 3.14 |
Married-Couple Family | 2,332,995 | 48.23%, see rank | 48.42% |
Nonfamily Households | 1,653,988 | 34.19%, see rank | 33.57% |
ACS 2008-2012 data
Total population: 12,823,860
Illinois | % | U.S. | |
Total Households | 4,774,275 | 100% | 115,226,802 |
Average Household Size | 2.62, see rank | - | 2.61 |
1 Person Households | 1,361,798 | 28.52%, see rank | 27.45% |
2 or More Person Households | 3,412,477 | 71.48%, see rank | 72.55% |
Family Households (Families) | 3,142,347 | 65.82%, see rank | 66.47% |
Average Family Size | 3.34, see rank | - | 3.29 |
Married-Couple Family | 2,323,608 | 48.67%, see rank | 48.97% |
Nonfamily Households | 1,631,928 | 34.18%, see rank | 33.53% |
ACS 2006-2010 data
Total population: 12,745,359
Illinois | % | U.S. | |
Total Households | 4,769,951 | 100% | 114,235,996 |
Average Household Size | 2.61, see rank | - | 2.59 |
1 Person Households | 1,346,786 | 28.23%, see rank | 27.24% |
2 or More Person Households | 3,423,165 | 71.77%, see rank | 72.76% |
Family Households (Families) | 3,161,547 | 66.28%, see rank | 66.75% |
Average Family Size | 3.31, see rank | - | 3.25 |
Married-Couple Family | 2,354,273 | 49.36%, see rank | 49.60% |
Nonfamily Households | 1,608,404 | 33.72%, see rank | 33.25% |
ACS 2005-2009 data
Total population: 12,785,043
Illinois | % | U.S. | |
Total Households | 4,749,388 | 100% | 112,611,029 |
Average Household Size | 2.62, see rank | - | 2.60 |
1 Person Households | 1,348,786 | 28.40%, see rank | 27.32% |
2 or More Person Households | 3,400,602 | 71.60%, see rank | 72.68% |
Family Households (Families) | 3,138,838 | 66.09%, see rank | 66.67% |
Average Family Size | 3.34, see rank | - | 3.27 |
Married-Couple Family | 2,344,034 | 49.35%, see rank | 49.71% |
Nonfamily Households | 1,610,550 | 33.91%, see rank | 33.33% |
US Census 2000 data
Total population: 12,419,293
Illinois | % | U.S. | |
Total Households | 4,591,779 | 100% | 105,480,101 |
Average Household Size | 2.63, see rank | - | 2.59 |
1 Person Households | 1,229,807 | 26.78%, see rank | 25.82% |
2 or More Person Households | 3,361,972 | 73.22%, see rank | 74.18% |
Family Households (Families) | 3,105,513 | 67.63%, see rank | 68.06% |
Average Family Size | 3.23, see rank | - | 3.14 |
Married-Couple Family | 2,353,892 | 51.26%, see rank | 51.66% |
Nonfamily Households | 1,486,266 | 32.37%, see rank | 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.