Jefferson County Historical Household and Family Data
ACS 2010-2014 data
Total population: 26,620
| Jefferson County | Idaho | U.S. | |
| Total Households | 8,175, 100% | 585,259 | 116,211,092 |
| Average Household Size | 3.24, see rank | 2.68 | 2.63 |
| 1 Person Households | 1,272, 15.56%, see rank | 24.37% | 27.57% |
| 2 or More Person Households | 6,903, 84.44%, see rank | 75.63% | 72.43% |
| Family Households (Families) | 6,716, 82.15%, see rank | 69.49% | 66.22% |
| Average Family Size | 3.69, see rank | 3.29 | 3.32 |
| Married-Couple Family | 5,585, 68.32%, see rank | 55.52% | 48.42% |
| Nonfamily Households | 1,459, 17.85%, see rank | 30.51% | 33.78% |
US Census 2010 data
Total population: 26,140
| Jefferson County | Idaho | U.S. | |
| Total Households | 8,146, 100% | 579,408 | 116,716,292 |
| Average Household Size | 3.20, see rank | 2.66 | 2.58 |
| 1 Person Households | 1,225, 15.04%, see rank | 23.78% | 26.74% |
| 2 or More Person Households | 6,921, 84.96%, see rank | 76.22% | 73.26% |
| Family Households (Families) | 6,698, 82.22%, see rank | 69.58% | 66.43% |
| Average Family Size | 3.57, see rank | 3.16 | 3.14 |
| Married-Couple Family | 5,748, 70.56%, see rank | 55.30% | 48.42% |
| Nonfamily Households | 1,448, 17.78%, see rank | 30.42% | 33.57% |
ACS 2008-2012 data
Total population: 25,940
| Jefferson County | Idaho | U.S. | |
| Total Households | 8,091, 100% | 577,648 | 115,226,802 |
| Average Household Size | 3.19, see rank | 2.66 | 2.61 |
| 1 Person Households | 1,114, 13.77%, see rank | 23.81% | 27.45% |
| 2 or More Person Households | 6,977, 86.23%, see rank | 76.19% | 72.55% |
| Family Households (Families) | 6,725, 83.12%, see rank | 69.95% | 66.47% |
| Average Family Size | 3.59, see rank | 3.24 | 3.29 |
| Married-Couple Family | 5,835, 72.12%, see rank | 56.14% | 48.97% |
| Nonfamily Households | 1,366, 16.88%, see rank | 30.05% | 33.53% |
ACS 2006-2010 data
Total population: 24,523
| Jefferson County | Idaho | U.S. | |
| Total Households | 7,781, 100% | 570,283 | 114,235,996 |
| Average Household Size | 3.14, see rank | 2.63 | 2.59 |
| 1 Person Households | 1,067, 13.71%, see rank | 23.64% | 27.24% |
| 2 or More Person Households | 6,714, 86.29%, see rank | 76.36% | 72.76% |
| Family Households (Families) | 6,495, 83.47%, see rank | 70.11% | 66.75% |
| Average Family Size | 3.52, see rank | 3.19 | 3.25 |
| Married-Couple Family | 5,695, 73.19%, see rank | 56.85% | 49.60% |
| Nonfamily Households | 1,286, 16.53%, see rank | 29.89% | 33.25% |
ACS 2005-2009 data
Total population: 22,892
| Jefferson County | Idaho | U.S. | |
| Total Households | 7,322, 100% | 552,726 | 112,611,029 |
| Average Household Size | 3.10, see rank | 2.64 | 2.60 |
| 1 Person Households | 1,004, 13.71%, see rank | 23.42% | 27.32% |
| 2 or More Person Households | 6,318, 86.29%, see rank | 76.58% | 72.68% |
| Family Households (Families) | 6,101, 83.32%, see rank | 70.28% | 66.67% |
| Average Family Size | 3.48, see rank | 3.20 | 3.27 |
| Married-Couple Family | 5,345, 73.00%, see rank | 57.01% | 49.71% |
| Nonfamily Households | 1,221, 16.68%, see rank | 29.72% | 33.33% |
US Census 2000 data
Total population: 19,155
| Jefferson County | Idaho | U.S. | |
| Total Households | 5,901, 100% | 469,645 | 105,480,101 |
| Average Household Size | 3.23, see rank | 2.69 | 2.59 |
| 1 Person Households | 895, 15.17%, see rank | 22.39% | 25.82% |
| 2 or More Person Households | 5,006, 84.83%, see rank | 77.61% | 74.18% |
| Family Households (Families) | 4,880, 82.70%, see rank | 71.46% | 68.06% |
| Average Family Size | 3.62, see rank | 3.17 | 3.14 |
| Married-Couple Family | 4,285, 72.61%, see rank | 58.88% | 51.66% |
| Nonfamily Households | 1,021, 17.30%, see rank | 28.54% | 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.