USA.com / New York / Suffolk County / Islip, NY / Population and Races / Historical Household and Family Data
Islip, NY Historical Household and Family Data
ACS 2010-2014 data
Total population: 18,229
| Islip, NY | New York | U.S. | |
| Total Households | 6,292, 100% | 7,255,528 | 116,211,092 |
| Average Household Size | 2.89, see rank | 2.62 | 2.63 |
| 1 Person Households | 1,316, 20.92%, see rank | 29.55% | 27.57% |
| 2 or More Person Households | 4,976, 79.08%, see rank | 70.45% | 72.43% |
| Family Households (Families) | 4,733, 75.22%, see rank | 63.90% | 66.22% |
| Average Family Size | 3.45, see rank | 3.38 | 3.32 |
| Married-Couple Family | 3,704, 58.87%, see rank | 44.12% | 48.42% |
| Nonfamily Households | 1,559, 24.78%, see rank | 36.10% | 33.78% |
US Census 2010 data
Total population: 18,689
| Islip, NY | New York | U.S. | |
| Total Households | 6,437, 100% | 7,317,755 | 116,716,292 |
| Average Household Size | 2.89, see rank | 2.57 | 2.58 |
| 1 Person Households | 1,338, 20.79%, see rank | 29.12% | 26.74% |
| 2 or More Person Households | 5,099, 79.21%, see rank | 70.88% | 73.26% |
| Family Households (Families) | 4,797, 74.52%, see rank | 63.54% | 66.43% |
| Average Family Size | 3.36, see rank | 3.20 | 3.14 |
| Married-Couple Family | 3,713, 57.68%, see rank | 43.63% | 48.42% |
| Nonfamily Households | 1,640, 25.48%, see rank | 36.46% | 33.57% |
ACS 2008-2012 data
Total population: 18,862
| Islip, NY | New York | U.S. | |
| Total Households | 6,467, 100% | 7,230,896 | 115,226,802 |
| Average Household Size | 2.91, see rank | 2.60 | 2.61 |
| 1 Person Households | 1,323, 20.46%, see rank | 29.31% | 27.45% |
| 2 or More Person Households | 5,144, 79.54%, see rank | 70.69% | 72.55% |
| Family Households (Families) | 4,767, 73.71%, see rank | 64.26% | 66.47% |
| Average Family Size | 3.51, see rank | 3.35 | 3.29 |
| Married-Couple Family | 3,719, 57.51%, see rank | 44.60% | 48.97% |
| Nonfamily Households | 1,700, 26.29%, see rank | 35.74% | 33.53% |
ACS 2006-2010 data
Total population: 18,970
| Islip, NY | New York | U.S. | |
| Total Households | 6,384, 100% | 7,205,740 | 114,235,996 |
| Average Household Size | 2.97, see rank | 2.59 | 2.59 |
| 1 Person Households | 1,183, 18.53%, see rank | 29.08% | 27.24% |
| 2 or More Person Households | 5,201, 81.47%, see rank | 70.92% | 72.76% |
| Family Households (Families) | 4,821, 75.52%, see rank | 64.62% | 66.75% |
| Average Family Size | 3.53, see rank | 3.31 | 3.25 |
| Married-Couple Family | 3,792, 59.40%, see rank | 45.20% | 49.60% |
| Nonfamily Households | 1,563, 24.48%, see rank | 35.38% | 33.25% |
ACS 2005-2009 data
Total population: 21,097
| Islip, NY | New York | U.S. | |
| Total Households | 6,748, 100% | 7,137,013 | 112,611,029 |
| Average Household Size | 3.11, see rank | 2.64 | 2.60 |
| 1 Person Households | 1,373, 20.35%, see rank | 29.48% | 27.32% |
| 2 or More Person Households | 5,375, 79.65%, see rank | 70.52% | 72.68% |
| Family Households (Families) | 5,002, 74.13%, see rank | 64.46% | 66.67% |
| Average Family Size | 3.77, see rank | 3.40 | 3.27 |
| Married-Couple Family | 4,087, 60.57%, see rank | 45.27% | 49.71% |
| Nonfamily Households | 1,746, 25.87%, see rank | 35.54% | 33.33% |
US Census 2000 data
Total population: 20,575
| Islip, NY | New York | U.S. | |
| Total Households | 6,868, 100% | 7,056,860 | 105,480,101 |
| Average Household Size | 2.97, see rank | 2.61 | 2.59 |
| 1 Person Households | 1,267, 18.45%, see rank | 28.10% | 25.82% |
| 2 or More Person Households | 5,601, 81.55%, see rank | 71.90% | 74.18% |
| Family Households (Families) | 5,300, 77.17%, see rank | 65.74% | 68.06% |
| Average Family Size | 3.38, see rank | 3.22 | 3.14 |
| Married-Couple Family | 4,215, 61.37%, see rank | 46.61% | 51.66% |
| Nonfamily Households | 1,568, 22.83%, see rank | 34.26% | 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.