Montana Historical Household and Family Data
ACS 2010-2014 data
Total population: 1,006,370
| Montana | % | U.S. | |
| Total Households | 407,797 | 100% | 116,211,092 |
| Average Household Size | 2.40, see rank | - | 2.63 |
| 1 Person Households | 123,214 | 30.21%, see rank | 27.57% |
| 2 or More Person Households | 284,583 | 69.79%, see rank | 72.43% |
| Family Households (Families) | 256,008 | 62.78%, see rank | 66.22% |
| Average Family Size | 3.06, see rank | - | 3.32 |
| Married-Couple Family | 202,289 | 49.61%, see rank | 48.42% |
| Nonfamily Households | 151,789 | 37.22%, see rank | 33.78% |
US Census 2010 data
Total population: 989,415
| Montana | % | U.S. | |
| Total Households | 409,607 | 100% | 116,716,292 |
| Average Household Size | 2.35, see rank | - | 2.58 |
| 1 Person Households | 121,775 | 29.73%, see rank | 26.74% |
| 2 or More Person Households | 287,832 | 70.27%, see rank | 73.26% |
| Family Households (Families) | 257,087 | 62.76%, see rank | 66.43% |
| Average Family Size | 2.91, see rank | - | 3.14 |
| Married-Couple Family | 201,611 | 49.22%, see rank | 48.42% |
| Nonfamily Households | 152,520 | 37.24%, see rank | 33.57% |
ACS 2008-2012 data
Total population: 990,785
| Montana | % | U.S. | |
| Total Households | 405,508 | 100% | 115,226,802 |
| Average Household Size | 2.37, see rank | - | 2.61 |
| 1 Person Households | 121,048 | 29.85%, see rank | 27.45% |
| 2 or More Person Households | 284,460 | 70.15%, see rank | 72.55% |
| Family Households (Families) | 256,237 | 63.19%, see rank | 66.47% |
| Average Family Size | 3.02, see rank | - | 3.29 |
| Married-Couple Family | 204,713 | 50.48%, see rank | 48.97% |
| Nonfamily Households | 149,271 | 36.81%, see rank | 33.53% |
ACS 2006-2010 data
Total population: 973,739
| Montana | % | U.S. | |
| Total Households | 401,328 | 100% | 114,235,996 |
| Average Household Size | 2.36, see rank | - | 2.59 |
| 1 Person Households | 116,779 | 29.10%, see rank | 27.24% |
| 2 or More Person Households | 284,549 | 70.90%, see rank | 72.76% |
| Family Households (Families) | 256,130 | 63.82%, see rank | 66.75% |
| Average Family Size | 2.98, see rank | - | 3.25 |
| Married-Couple Family | 207,111 | 51.61%, see rank | 49.60% |
| Nonfamily Households | 145,198 | 36.18%, see rank | 33.25% |
ACS 2005-2009 data
Total population: 956,257
| Montana | % | U.S. | |
| Total Households | 372,947 | 100% | 112,611,029 |
| Average Household Size | 2.49, see rank | - | 2.60 |
| 1 Person Households | 109,828 | 29.45%, see rank | 27.32% |
| 2 or More Person Households | 263,119 | 70.55%, see rank | 72.68% |
| Family Households (Families) | 237,424 | 63.66%, see rank | 66.67% |
| Average Family Size | 3.15, see rank | - | 3.27 |
| Married-Couple Family | 192,270 | 51.55%, see rank | 49.71% |
| Nonfamily Households | 135,523 | 36.34%, see rank | 33.33% |
US Census 2000 data
Total population: 902,195
| Montana | % | U.S. | |
| Total Households | 358,667 | 100% | 105,480,101 |
| Average Household Size | 2.45, see rank | - | 2.59 |
| 1 Person Households | 98,422 | 27.44%, see rank | 25.82% |
| 2 or More Person Households | 260,245 | 72.56%, see rank | 74.18% |
| Family Households (Families) | 237,407 | 66.19%, see rank | 68.06% |
| Average Family Size | 2.99, see rank | - | 3.14 |
| Married-Couple Family | 192,067 | 53.55%, see rank | 51.66% |
| Nonfamily Households | 121,260 | 33.81%, see rank | 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.