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Lake Forest, IL Historical Household and Family Data
ACS 2010-2014 data
Total population: 18,914
Lake Forest, IL | Illinois | U.S. | |
Total Households | 6,606, 100% | 4,778,633 | 116,211,092 |
Average Household Size | 2.69, see rank | 2.63 | 2.63 |
1 Person Households | 1,277, 19.33%, see rank | 28.68% | 27.57% |
2 or More Person Households | 5,329, 80.67%, see rank | 71.32% | 72.43% |
Family Households (Families) | 5,209, 78.85%, see rank | 65.52% | 66.22% |
Average Family Size | 3.11, see rank | 3.36 | 3.32 |
Married-Couple Family | 4,712, 71.33%, see rank | 48.22% | 48.42% |
Nonfamily Households | 1,397, 21.15%, see rank | 34.48% | 33.78% |
US Census 2010 data
Total population: 19,375
Lake Forest, IL | Illinois | U.S. | |
Total Households | 6,763, 100% | 4,836,972 | 116,716,292 |
Average Household Size | 2.68, see rank | 2.59 | 2.58 |
1 Person Households | 1,368, 20.23%, see rank | 27.83% | 26.74% |
2 or More Person Households | 5,395, 79.77%, see rank | 72.17% | 73.26% |
Family Households (Families) | 5,247, 77.58%, see rank | 65.81% | 66.43% |
Average Family Size | 3.11, see rank | 3.20 | 3.14 |
Married-Couple Family | 4,733, 69.98%, see rank | 48.23% | 48.42% |
Nonfamily Households | 1,516, 22.42%, see rank | 34.19% | 33.57% |
ACS 2008-2012 data
Total population: 19,068
Lake Forest, IL | Illinois | U.S. | |
Total Households | 6,569, 100% | 4,774,275 | 115,226,802 |
Average Household Size | 2.72, see rank | 2.62 | 2.61 |
1 Person Households | 1,219, 18.56%, see rank | 28.52% | 27.45% |
2 or More Person Households | 5,350, 81.44%, see rank | 71.48% | 72.55% |
Family Households (Families) | 5,183, 78.90%, see rank | 65.82% | 66.47% |
Average Family Size | 3.14, see rank | 3.34 | 3.29 |
Married-Couple Family | 4,703, 71.59%, see rank | 48.67% | 48.97% |
Nonfamily Households | 1,386, 21.10%, see rank | 34.18% | 33.53% |
ACS 2006-2010 data
Total population: 19,397
Lake Forest, IL | Illinois | U.S. | |
Total Households | 6,811, 100% | 4,769,951 | 114,235,996 |
Average Household Size | 2.68, see rank | 2.61 | 2.59 |
1 Person Households | 1,454, 21.35%, see rank | 28.23% | 27.24% |
2 or More Person Households | 5,357, 78.65%, see rank | 71.77% | 72.76% |
Family Households (Families) | 5,205, 76.42%, see rank | 66.28% | 66.75% |
Average Family Size | 3.16, see rank | 3.31 | 3.25 |
Married-Couple Family | 4,719, 69.28%, see rank | 49.36% | 49.60% |
Nonfamily Households | 1,606, 23.58%, see rank | 33.72% | 33.25% |
ACS 2005-2009 data
Total population: 21,063
Lake Forest, IL | Illinois | U.S. | |
Total Households | 7,025, 100% | 4,749,388 | 112,611,029 |
Average Household Size | 2.82, see rank | 2.62 | 2.60 |
1 Person Households | 1,446, 20.58%, see rank | 28.40% | 27.32% |
2 or More Person Households | 5,579, 79.42%, see rank | 71.60% | 72.68% |
Family Households (Families) | 5,469, 77.85%, see rank | 66.09% | 66.67% |
Average Family Size | 3.32, see rank | 3.34 | 3.27 |
Married-Couple Family | 5,024, 71.52%, see rank | 49.35% | 49.71% |
Nonfamily Households | 1,556, 22.15%, see rank | 33.91% | 33.33% |
US Census 2000 data
Total population: 20,059
Lake Forest, IL | Illinois | U.S. | |
Total Households | 6,687, 100% | 4,591,779 | 105,480,101 |
Average Household Size | 2.78, see rank | 2.63 | 2.59 |
1 Person Households | 1,224, 18.30%, see rank | 26.78% | 25.82% |
2 or More Person Households | 5,463, 81.70%, see rank | 73.22% | 74.18% |
Family Households (Families) | 5,331, 79.72%, see rank | 67.63% | 68.06% |
Average Family Size | 3.17, see rank | 3.23 | 3.14 |
Married-Couple Family | 4,924, 73.64%, see rank | 51.26% | 51.66% |
Nonfamily Households | 1,356, 20.28%, 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.