Janesville, IA Historical Household and Family Data
ACS 2010-2014 data
Total population: 888
| Janesville, IA | Iowa | U.S. | |
| Total Households | 384, 100% | 1,232,228 | 116,211,092 |
| Average Household Size | 2.31, see rank | 2.42 | 2.63 |
| 1 Person Households | 114, 29.69%, see rank | 28.77% | 27.57% |
| 2 or More Person Households | 270, 70.31%, see rank | 71.23% | 72.43% |
| Family Households (Families) | 256, 66.67%, see rank | 64.68% | 66.22% |
| Average Family Size | 2.91, see rank | 3.05 | 3.32 |
| Married-Couple Family | 211, 54.95%, see rank | 51.37% | 48.42% |
| Nonfamily Households | 128, 33.33%, see rank | 35.32% | 33.78% |
US Census 2010 data
Total population: 930
| Janesville, IA | Iowa | U.S. | |
| Total Households | 398, 100% | 1,221,576 | 116,716,292 |
| Average Household Size | 2.34, see rank | 2.41 | 2.58 |
| 1 Person Households | 112, 28.14%, see rank | 28.45% | 26.74% |
| 2 or More Person Households | 286, 71.86%, see rank | 71.55% | 73.26% |
| Family Households (Families) | 262, 65.83%, see rank | 64.67% | 66.43% |
| Average Family Size | 2.90, see rank | 2.97 | 3.14 |
| Married-Couple Family | 226, 56.78%, see rank | 51.18% | 48.42% |
| Nonfamily Households | 136, 34.17%, see rank | 35.33% | 33.57% |
ACS 2008-2012 data
Total population: 986
| Janesville, IA | Iowa | U.S. | |
| Total Households | 449, 100% | 1,223,509 | 115,226,802 |
| Average Household Size | 2.20, see rank | 2.41 | 2.61 |
| 1 Person Households | 123, 27.39%, see rank | 28.63% | 27.45% |
| 2 or More Person Households | 326, 72.61%, see rank | 71.37% | 72.55% |
| Family Households (Families) | 280, 62.36%, see rank | 65.05% | 66.47% |
| Average Family Size | 2.78, see rank | 3.03 | 3.29 |
| Married-Couple Family | 227, 50.56%, see rank | 51.96% | 48.97% |
| Nonfamily Households | 169, 37.64%, see rank | 34.95% | 33.53% |
ACS 2006-2010 data
Total population: 942
| Janesville, IA | Iowa | U.S. | |
| Total Households | 403, 100% | 1,215,954 | 114,235,996 |
| Average Household Size | 2.34, see rank | 2.40 | 2.59 |
| 1 Person Households | 95, 23.57%, see rank | 28.44% | 27.24% |
| 2 or More Person Households | 308, 76.43%, see rank | 71.56% | 72.76% |
| Family Households (Families) | 278, 68.98%, see rank | 65.29% | 66.75% |
| Average Family Size | 2.83, see rank | 3.01 | 3.25 |
| Married-Couple Family | 225, 55.83%, see rank | 52.60% | 49.60% |
| Nonfamily Households | 125, 31.02%, see rank | 34.71% | 33.25% |
ACS 2005-2009 data
Total population: 906
| Janesville, IA | Iowa | U.S. | |
| Total Households | 445, 100% | 1,215,970 | 112,611,029 |
| Average Household Size | 2.04, see rank | 2.36 | 2.60 |
| 1 Person Households | 128, 28.76%, see rank | 28.28% | 27.32% |
| 2 or More Person Households | 317, 71.24%, see rank | 71.72% | 72.68% |
| Family Households (Families) | 276, 62.02%, see rank | 65.23% | 66.67% |
| Average Family Size | 2.53, see rank | 2.96 | 3.27 |
| Married-Couple Family | 223, 50.11%, see rank | 52.57% | 49.71% |
| Nonfamily Households | 169, 37.98%, see rank | 34.77% | 33.33% |
US Census 2000 data
Total population: 829
| Janesville, IA | Iowa | U.S. | |
| Total Households | 349, 100% | 1,149,276 | 105,480,101 |
| Average Household Size | 2.38, see rank | 2.46 | 2.59 |
| 1 Person Households | 90, 25.79%, see rank | 27.24% | 25.82% |
| 2 or More Person Households | 259, 74.21%, see rank | 72.76% | 74.18% |
| Family Households (Families) | 246, 70.49%, see rank | 66.97% | 68.06% |
| Average Family Size | 2.83, see rank | 3.00 | 3.14 |
| Married-Couple Family | 203, 58.17%, see rank | 55.10% | 51.66% |
| Nonfamily Households | 103, 29.51%, see rank | 33.03% | 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.