Erie County Historical Household and Family Data
ACS 2010-2014 data
Total population: 920,694
| Erie County | New York | U.S. | |
| Total Households | 381,783, 100% | 7,255,528 | 116,211,092 |
| Average Household Size | 2.34, see rank | 2.62 | 2.63 |
| 1 Person Households | 125,803, 32.95%, see rank | 29.55% | 27.57% |
| 2 or More Person Households | 255,980, 67.05%, see rank | 70.45% | 72.43% |
| Family Households (Families) | 231,034, 60.51%, see rank | 63.90% | 66.22% |
| Average Family Size | 3.06, see rank | 3.38 | 3.32 |
| Married-Couple Family | 160,584, 42.06%, see rank | 44.12% | 48.42% |
| Nonfamily Households | 150,749, 39.49%, see rank | 36.10% | 33.78% |
US Census 2010 data
Total population: 919,040
| Erie County | New York | U.S. | |
| Total Households | 383,164, 100% | 7,317,755 | 116,716,292 |
| Average Household Size | 2.32, see rank | 2.57 | 2.58 |
| 1 Person Households | 126,568, 33.03%, see rank | 29.12% | 26.74% |
| 2 or More Person Households | 256,596, 66.97%, see rank | 70.88% | 73.26% |
| Family Households (Families) | 230,009, 60.03%, see rank | 63.54% | 66.43% |
| Average Family Size | 2.99, see rank | 3.20 | 3.14 |
| Married-Couple Family | 161,163, 42.06%, see rank | 43.63% | 48.42% |
| Nonfamily Households | 153,155, 39.97%, see rank | 36.46% | 33.57% |
ACS 2008-2012 data
Total population: 919,542
| Erie County | New York | U.S. | |
| Total Households | 379,980, 100% | 7,230,896 | 115,226,802 |
| Average Household Size | 2.34, see rank | 2.60 | 2.61 |
| 1 Person Households | 124,438, 32.75%, see rank | 29.31% | 27.45% |
| 2 or More Person Households | 255,542, 67.25%, see rank | 70.69% | 72.55% |
| Family Households (Families) | 231,367, 60.89%, see rank | 64.26% | 66.47% |
| Average Family Size | 3.07, see rank | 3.35 | 3.29 |
| Married-Couple Family | 162,321, 42.72%, see rank | 44.60% | 48.97% |
| Nonfamily Households | 148,613, 39.11%, see rank | 35.74% | 33.53% |
ACS 2006-2010 data
Total population: 921,202
| Erie County | New York | U.S. | |
| Total Households | 378,080, 100% | 7,205,740 | 114,235,996 |
| Average Household Size | 2.36, see rank | 2.59 | 2.59 |
| 1 Person Households | 123,315, 32.62%, see rank | 29.08% | 27.24% |
| 2 or More Person Households | 254,765, 67.38%, see rank | 70.92% | 72.76% |
| Family Households (Families) | 231,113, 61.13%, see rank | 64.62% | 66.75% |
| Average Family Size | 3.09, see rank | 3.31 | 3.25 |
| Married-Couple Family | 164,871, 43.61%, see rank | 45.20% | 49.60% |
| Nonfamily Households | 146,967, 38.87%, see rank | 35.38% | 33.25% |
ACS 2005-2009 data
Total population: 914,200
| Erie County | New York | U.S. | |
| Total Households | 380,565, 100% | 7,137,013 | 112,611,029 |
| Average Household Size | 2.33, see rank | 2.64 | 2.60 |
| 1 Person Households | 124,951, 32.83%, see rank | 29.48% | 27.32% |
| 2 or More Person Households | 255,614, 67.17%, see rank | 70.52% | 72.68% |
| Family Households (Families) | 232,748, 61.16%, see rank | 64.46% | 66.67% |
| Average Family Size | 3.05, see rank | 3.40 | 3.27 |
| Married-Couple Family | 166,423, 43.73%, see rank | 45.27% | 49.71% |
| Nonfamily Households | 147,817, 38.84%, see rank | 35.54% | 33.33% |
US Census 2000 data
Total population: 950,265
| Erie County | New York | U.S. | |
| Total Households | 380,873, 100% | 7,056,860 | 105,480,101 |
| Average Household Size | 2.41, see rank | 2.61 | 2.59 |
| 1 Person Households | 116,309, 30.54%, see rank | 28.10% | 25.82% |
| 2 or More Person Households | 264,564, 69.46%, see rank | 71.90% | 74.18% |
| Family Households (Families) | 243,359, 63.90%, see rank | 65.74% | 68.06% |
| Average Family Size | 3.04, see rank | 3.22 | 3.14 |
| Married-Couple Family | 177,089, 46.50%, see rank | 46.61% | 51.66% |
| Nonfamily Households | 137,514, 36.10%, 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.