Jefferson County Historical Household and Family Data
ACS 2010-2014 data
Total population: 118,885
| Jefferson County | New York | U.S. | |
| Total Households | 44,822, 100% | 7,255,528 | 116,211,092 |
| Average Household Size | 2.52, see rank | 2.62 | 2.63 |
| 1 Person Households | 11,809, 26.35%, see rank | 29.55% | 27.57% |
| 2 or More Person Households | 33,013, 73.65%, see rank | 70.45% | 72.43% |
| Family Households (Families) | 30,290, 67.58%, see rank | 63.90% | 66.22% |
| Average Family Size | 3.14, see rank | 3.38 | 3.32 |
| Married-Couple Family | 23,393, 52.19%, see rank | 44.12% | 48.42% |
| Nonfamily Households | 14,532, 32.42%, see rank | 36.10% | 33.78% |
US Census 2010 data
Total population: 116,229
| Jefferson County | New York | U.S. | |
| Total Households | 43,451, 100% | 7,317,755 | 116,716,292 |
| Average Household Size | 2.53, see rank | 2.57 | 2.58 |
| 1 Person Households | 11,123, 25.60%, see rank | 29.12% | 26.74% |
| 2 or More Person Households | 32,328, 74.40%, see rank | 70.88% | 73.26% |
| Family Households (Families) | 29,633, 68.20%, see rank | 63.54% | 66.43% |
| Average Family Size | 3.03, see rank | 3.20 | 3.14 |
| Married-Couple Family | 22,194, 51.08%, see rank | 43.63% | 48.42% |
| Nonfamily Households | 13,818, 31.80%, see rank | 36.46% | 33.57% |
ACS 2008-2012 data
Total population: 117,011
| Jefferson County | New York | U.S. | |
| Total Households | 45,162, 100% | 7,230,896 | 115,226,802 |
| Average Household Size | 2.47, see rank | 2.60 | 2.61 |
| 1 Person Households | 11,294, 25.01%, see rank | 29.31% | 27.45% |
| 2 or More Person Households | 33,868, 74.99%, see rank | 70.69% | 72.55% |
| Family Households (Families) | 30,931, 68.49%, see rank | 64.26% | 66.47% |
| Average Family Size | 3.04, see rank | 3.35 | 3.29 |
| Married-Couple Family | 23,505, 52.05%, see rank | 44.60% | 48.97% |
| Nonfamily Households | 14,231, 31.51%, see rank | 35.74% | 33.53% |
ACS 2006-2010 data
Total population: 115,069
| Jefferson County | New York | U.S. | |
| Total Households | 44,109, 100% | 7,205,740 | 114,235,996 |
| Average Household Size | 2.53, see rank | 2.59 | 2.59 |
| 1 Person Households | 10,953, 24.83%, see rank | 29.08% | 27.24% |
| 2 or More Person Households | 33,156, 75.17%, see rank | 70.92% | 72.76% |
| Family Households (Families) | 30,650, 69.49%, see rank | 64.62% | 66.75% |
| Average Family Size | 3.10, see rank | 3.31 | 3.25 |
| Married-Couple Family | 23,467, 53.20%, see rank | 45.20% | 49.60% |
| Nonfamily Households | 13,459, 30.51%, see rank | 35.38% | 33.25% |
ACS 2005-2009 data
Total population: 117,595
| Jefferson County | New York | U.S. | |
| Total Households | 43,938, 100% | 7,137,013 | 112,611,029 |
| Average Household Size | 2.59, see rank | 2.64 | 2.60 |
| 1 Person Households | 10,579, 24.08%, see rank | 29.48% | 27.32% |
| 2 or More Person Households | 33,359, 75.92%, see rank | 70.52% | 72.68% |
| Family Households (Families) | 31,033, 70.63%, see rank | 64.46% | 66.67% |
| Average Family Size | 3.15, see rank | 3.40 | 3.27 |
| Married-Couple Family | 23,331, 53.10%, see rank | 45.27% | 49.71% |
| Nonfamily Households | 12,905, 29.37%, see rank | 35.54% | 33.33% |
US Census 2000 data
Total population: 111,738
| Jefferson County | New York | U.S. | |
| Total Households | 40,068, 100% | 7,056,860 | 105,480,101 |
| Average Household Size | 2.58, see rank | 2.61 | 2.59 |
| 1 Person Households | 9,775, 24.40%, see rank | 28.10% | 25.82% |
| 2 or More Person Households | 30,293, 75.60%, see rank | 71.90% | 74.18% |
| Family Households (Families) | 28,142, 70.24%, see rank | 65.74% | 68.06% |
| Average Family Size | 3.07, see rank | 3.22 | 3.14 |
| Married-Couple Family | 22,284, 55.62%, see rank | 46.61% | 51.66% |
| Nonfamily Households | 11,926, 29.76%, 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.