Niagara County Historical Household and Family Data
ACS 2010-2014 data
Total population: 214,973
| Niagara County | New York | U.S. | |
| Total Households | 88,252, 100% | 7,255,528 | 116,211,092 |
| Average Household Size | 2.39, see rank | 2.62 | 2.63 |
| 1 Person Households | 28,440, 32.23%, see rank | 29.55% | 27.57% |
| 2 or More Person Households | 59,812, 67.77%, see rank | 70.45% | 72.43% |
| Family Households (Families) | 55,365, 62.74%, see rank | 63.90% | 66.22% |
| Average Family Size | 3.11, see rank | 3.38 | 3.32 |
| Married-Couple Family | 39,983, 45.31%, see rank | 44.12% | 48.42% |
| Nonfamily Households | 32,887, 37.26%, see rank | 36.10% | 33.78% |
US Census 2010 data
Total population: 216,469
| Niagara County | New York | U.S. | |
| Total Households | 90,556, 100% | 7,317,755 | 116,716,292 |
| Average Household Size | 2.34, see rank | 2.57 | 2.58 |
| 1 Person Households | 28,406, 31.37%, see rank | 29.12% | 26.74% |
| 2 or More Person Households | 62,150, 68.63%, see rank | 70.88% | 73.26% |
| Family Households (Families) | 56,813, 62.74%, see rank | 63.54% | 66.43% |
| Average Family Size | 2.94, see rank | 3.20 | 3.14 |
| Married-Couple Family | 40,806, 45.06%, see rank | 43.63% | 48.42% |
| Nonfamily Households | 33,743, 37.26%, see rank | 36.46% | 33.57% |
ACS 2008-2012 data
Total population: 215,869
| Niagara County | New York | U.S. | |
| Total Households | 88,542, 100% | 7,230,896 | 115,226,802 |
| Average Household Size | 2.39, see rank | 2.60 | 2.61 |
| 1 Person Households | 27,754, 31.35%, see rank | 29.31% | 27.45% |
| 2 or More Person Households | 60,788, 68.65%, see rank | 70.69% | 72.55% |
| Family Households (Families) | 55,900, 63.13%, see rank | 64.26% | 66.47% |
| Average Family Size | 3.09, see rank | 3.35 | 3.29 |
| Married-Couple Family | 41,239, 46.58%, see rank | 44.60% | 48.97% |
| Nonfamily Households | 32,642, 36.87%, see rank | 35.74% | 33.53% |
ACS 2006-2010 data
Total population: 216,064
| Niagara County | New York | U.S. | |
| Total Households | 88,152, 100% | 7,205,740 | 114,235,996 |
| Average Household Size | 2.40, see rank | 2.59 | 2.59 |
| 1 Person Households | 27,050, 30.69%, see rank | 29.08% | 27.24% |
| 2 or More Person Households | 61,102, 69.31%, see rank | 70.92% | 72.76% |
| Family Households (Families) | 56,556, 64.16%, see rank | 64.62% | 66.75% |
| Average Family Size | 3.08, see rank | 3.31 | 3.25 |
| Married-Couple Family | 42,137, 47.80%, see rank | 45.20% | 49.60% |
| Nonfamily Households | 31,596, 35.84%, see rank | 35.38% | 33.25% |
ACS 2005-2009 data
Total population: 214,613
| Niagara County | New York | U.S. | |
| Total Households | 87,854, 100% | 7,137,013 | 112,611,029 |
| Average Household Size | 2.40, see rank | 2.64 | 2.60 |
| 1 Person Households | 26,608, 30.29%, see rank | 29.48% | 27.32% |
| 2 or More Person Households | 61,246, 69.71%, see rank | 70.52% | 72.68% |
| Family Households (Families) | 56,488, 64.30%, see rank | 64.46% | 66.67% |
| Average Family Size | 3.06, see rank | 3.40 | 3.27 |
| Married-Couple Family | 42,030, 47.84%, see rank | 45.27% | 49.71% |
| Nonfamily Households | 31,366, 35.70%, see rank | 35.54% | 33.33% |
US Census 2000 data
Total population: 219,846
| Niagara County | New York | U.S. | |
| Total Households | 87,846, 100% | 7,056,860 | 105,480,101 |
| Average Household Size | 2.45, see rank | 2.61 | 2.59 |
| 1 Person Households | 25,081, 28.55%, see rank | 28.10% | 25.82% |
| 2 or More Person Households | 62,765, 71.45%, see rank | 71.90% | 74.18% |
| Family Households (Families) | 58,582, 66.69%, see rank | 65.74% | 68.06% |
| Average Family Size | 3.03, see rank | 3.22 | 3.14 |
| Married-Couple Family | 44,173, 50.28%, see rank | 46.61% | 51.66% |
| Nonfamily Households | 29,264, 33.31%, 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.