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Illinois Historical Household and Family Data


ACS 2010-2014 data

Total population: 12,868,747

Total Households4,778,633100%116,211,092
Average Household Size2.63, see rank-2.63
1 Person Households1,370,50228.68%, see rank27.57%
2 or More Person Households3,408,13171.32%, see rank72.43%
Family Households (Families)3,131,12565.52%, see rank66.22%
Average Family Size3.36, see rank-3.32
Married-Couple Family2,304,14848.22%, see rank48.42%
Nonfamily Households1,647,50834.48%, see rank33.78%

US Census 2010 data

Total population: 12,830,632

Total Households4,836,972100%116,716,292
Average Household Size2.59, see rank-2.58
1 Person Households1,346,31227.83%, see rank26.74%
2 or More Person Households3,490,66072.17%, see rank73.26%
Family Households (Families)3,182,98465.81%, see rank66.43%
Average Family Size3.20, see rank-3.14
Married-Couple Family2,332,99548.23%, see rank48.42%
Nonfamily Households1,653,98834.19%, see rank33.57%

ACS 2008-2012 data

Total population: 12,823,860

Total Households4,774,275100%115,226,802
Average Household Size2.62, see rank-2.61
1 Person Households1,361,79828.52%, see rank27.45%
2 or More Person Households3,412,47771.48%, see rank72.55%
Family Households (Families)3,142,34765.82%, see rank66.47%
Average Family Size3.34, see rank-3.29
Married-Couple Family2,323,60848.67%, see rank48.97%
Nonfamily Households1,631,92834.18%, see rank33.53%

ACS 2006-2010 data

Total population: 12,745,359

Total Households4,769,951100%114,235,996
Average Household Size2.61, see rank-2.59
1 Person Households1,346,78628.23%, see rank27.24%
2 or More Person Households3,423,16571.77%, see rank72.76%
Family Households (Families)3,161,54766.28%, see rank66.75%
Average Family Size3.31, see rank-3.25
Married-Couple Family2,354,27349.36%, see rank49.60%
Nonfamily Households1,608,40433.72%, see rank33.25%

ACS 2005-2009 data

Total population: 12,785,043

Total Households4,749,388100%112,611,029
Average Household Size2.62, see rank-2.60
1 Person Households1,348,78628.40%, see rank27.32%
2 or More Person Households3,400,60271.60%, see rank72.68%
Family Households (Families)3,138,83866.09%, see rank66.67%
Average Family Size3.34, see rank-3.27
Married-Couple Family2,344,03449.35%, see rank49.71%
Nonfamily Households1,610,55033.91%, see rank33.33%

US Census 2000 data

Total population: 12,419,293

Total Households4,591,779100%105,480,101
Average Household Size2.63, see rank-2.59
1 Person Households1,229,80726.78%, see rank25.82%
2 or More Person Households3,361,97273.22%, see rank74.18%
Family Households (Families)3,105,51367.63%, see rank68.06%
Average Family Size3.23, see rank-3.14
Married-Couple Family2,353,89251.26%, see rank51.66%
Nonfamily Households1,486,26632.37%, see rank31.94%

* 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.

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