Ontario County Historical Household and Family Data
ACS 2010-2014 data
Total population: 108,975
| Ontario County | New York | U.S. | |
| Total Households | 44,198, 100% | 7,255,528 | 116,211,092 |
| Average Household Size | 2.38, see rank | 2.62 | 2.63 |
| 1 Person Households | 12,500, 28.28%, see rank | 29.55% | 27.57% |
| 2 or More Person Households | 31,698, 71.72%, see rank | 70.45% | 72.43% |
| Family Households (Families) | 28,683, 64.90%, see rank | 63.90% | 66.22% |
| Average Family Size | 2.99, see rank | 3.38 | 3.32 |
| Married-Couple Family | 21,593, 48.86%, see rank | 44.12% | 48.42% |
| Nonfamily Households | 15,515, 35.10%, see rank | 36.10% | 33.78% |
US Census 2010 data
Total population: 107,931
| Ontario County | New York | U.S. | |
| Total Households | 43,019, 100% | 7,317,755 | 116,716,292 |
| Average Household Size | 2.43, see rank | 2.57 | 2.58 |
| 1 Person Households | 11,576, 26.91%, see rank | 29.12% | 26.74% |
| 2 or More Person Households | 31,443, 73.09%, see rank | 70.88% | 73.26% |
| Family Households (Families) | 28,379, 65.97%, see rank | 63.54% | 66.43% |
| Average Family Size | 2.95, see rank | 3.20 | 3.14 |
| Married-Couple Family | 22,009, 51.16%, see rank | 43.63% | 48.42% |
| Nonfamily Households | 14,640, 34.03%, see rank | 36.46% | 33.57% |
ACS 2008-2012 data
Total population: 107,728
| Ontario County | New York | U.S. | |
| Total Households | 43,822, 100% | 7,230,896 | 115,226,802 |
| Average Household Size | 2.37, see rank | 2.60 | 2.61 |
| 1 Person Households | 12,220, 27.89%, see rank | 29.31% | 27.45% |
| 2 or More Person Households | 31,602, 72.11%, see rank | 70.69% | 72.55% |
| Family Households (Families) | 28,595, 65.25%, see rank | 64.26% | 66.47% |
| Average Family Size | 2.97, see rank | 3.35 | 3.29 |
| Married-Couple Family | 22,227, 50.72%, see rank | 44.60% | 48.97% |
| Nonfamily Households | 15,227, 34.75%, see rank | 35.74% | 33.53% |
ACS 2006-2010 data
Total population: 106,298
| Ontario County | New York | U.S. | |
| Total Households | 42,952, 100% | 7,205,740 | 114,235,996 |
| Average Household Size | 2.40, see rank | 2.59 | 2.59 |
| 1 Person Households | 11,836, 27.56%, see rank | 29.08% | 27.24% |
| 2 or More Person Households | 31,116, 72.44%, see rank | 70.92% | 72.76% |
| Family Households (Families) | 28,292, 65.87%, see rank | 64.62% | 66.75% |
| Average Family Size | 3.02, see rank | 3.31 | 3.25 |
| Married-Couple Family | 22,387, 52.12%, see rank | 45.20% | 49.60% |
| Nonfamily Households | 14,660, 34.13%, see rank | 35.38% | 33.25% |
ACS 2005-2009 data
Total population: 104,205
| Ontario County | New York | U.S. | |
| Total Households | 41,469, 100% | 7,137,013 | 112,611,029 |
| Average Household Size | 2.43, see rank | 2.64 | 2.60 |
| 1 Person Households | 11,445, 27.60%, see rank | 29.48% | 27.32% |
| 2 or More Person Households | 30,024, 72.40%, see rank | 70.52% | 72.68% |
| Family Households (Families) | 27,493, 66.30%, see rank | 64.46% | 66.67% |
| Average Family Size | 3.05, see rank | 3.40 | 3.27 |
| Married-Couple Family | 21,773, 52.50%, see rank | 45.27% | 49.71% |
| Nonfamily Households | 13,976, 33.70%, see rank | 35.54% | 33.33% |
US Census 2000 data
Total population: 100,224
| Ontario County | New York | U.S. | |
| Total Households | 38,370, 100% | 7,056,860 | 105,480,101 |
| Average Household Size | 2.53, see rank | 2.61 | 2.59 |
| 1 Person Households | 9,466, 24.67%, see rank | 28.10% | 25.82% |
| 2 or More Person Households | 28,904, 75.33%, see rank | 71.90% | 74.18% |
| Family Households (Families) | 26,354, 68.68%, see rank | 65.74% | 68.06% |
| Average Family Size | 3.03, see rank | 3.22 | 3.14 |
| Married-Couple Family | 21,121, 55.05%, see rank | 46.61% | 51.66% |
| Nonfamily Households | 12,016, 31.32%, 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.