Gallatin County Historical Household and Family Data
ACS 2010-2014 data
Total population: 93,108
| Gallatin County | Montana | U.S. | |
| Total Households | 37,495, 100% | 407,797 | 116,211,092 |
| Average Household Size | 2.38, see rank | 2.40 | 2.63 |
| 1 Person Households | 10,138, 27.04%, see rank | 30.21% | 27.57% |
| 2 or More Person Households | 27,357, 72.96%, see rank | 69.79% | 72.43% |
| Family Households (Families) | 22,562, 60.17%, see rank | 62.78% | 66.22% |
| Average Family Size | 2.94, see rank | 3.06 | 3.32 |
| Married-Couple Family | 18,531, 49.42%, see rank | 49.61% | 48.42% |
| Nonfamily Households | 14,933, 39.83%, see rank | 37.22% | 33.78% |
US Census 2010 data
Total population: 89,513
| Gallatin County | Montana | U.S. | |
| Total Households | 36,550, 100% | 409,607 | 116,716,292 |
| Average Household Size | 2.36, see rank | 2.35 | 2.58 |
| 1 Person Households | 9,987, 27.32%, see rank | 29.73% | 26.74% |
| 2 or More Person Households | 26,563, 72.68%, see rank | 70.27% | 73.26% |
| Family Households (Families) | 21,263, 58.18%, see rank | 62.76% | 66.43% |
| Average Family Size | 2.90, see rank | 2.91 | 3.14 |
| Married-Couple Family | 17,473, 47.81%, see rank | 49.22% | 48.42% |
| Nonfamily Households | 15,287, 41.82%, see rank | 37.24% | 33.57% |
ACS 2008-2012 data
Total population: 90,339
| Gallatin County | Montana | U.S. | |
| Total Households | 36,659, 100% | 405,508 | 115,226,802 |
| Average Household Size | 2.34, see rank | 2.37 | 2.61 |
| 1 Person Households | 9,798, 26.73%, see rank | 29.85% | 27.45% |
| 2 or More Person Households | 26,861, 73.27%, see rank | 70.15% | 72.55% |
| Family Households (Families) | 22,085, 60.24%, see rank | 63.19% | 66.47% |
| Average Family Size | 2.90, see rank | 3.02 | 3.29 |
| Married-Couple Family | 18,025, 49.17%, see rank | 50.48% | 48.97% |
| Nonfamily Households | 14,574, 39.76%, see rank | 36.81% | 33.53% |
ACS 2006-2010 data
Total population: 87,676
| Gallatin County | Montana | U.S. | |
| Total Households | 35,753, 100% | 401,328 | 114,235,996 |
| Average Household Size | 2.34, see rank | 2.36 | 2.59 |
| 1 Person Households | 9,912, 27.72%, see rank | 29.10% | 27.24% |
| 2 or More Person Households | 25,841, 72.28%, see rank | 70.90% | 72.76% |
| Family Households (Families) | 21,061, 58.91%, see rank | 63.82% | 66.75% |
| Average Family Size | 2.93, see rank | 2.98 | 3.25 |
| Married-Couple Family | 17,609, 49.25%, see rank | 51.61% | 49.60% |
| Nonfamily Households | 14,692, 41.09%, see rank | 36.18% | 33.25% |
ACS 2005-2009 data
Total population: 86,532
| Gallatin County | Montana | U.S. | |
| Total Households | 32,898, 100% | 372,947 | 112,611,029 |
| Average Household Size | 2.52, see rank | 2.49 | 2.60 |
| 1 Person Households | 8,953, 27.21%, see rank | 29.45% | 27.32% |
| 2 or More Person Households | 23,945, 72.79%, see rank | 70.55% | 72.68% |
| Family Households (Families) | 19,244, 58.50%, see rank | 63.66% | 66.67% |
| Average Family Size | 3.08, see rank | 3.15 | 3.27 |
| Married-Couple Family | 16,274, 49.47%, see rank | 51.55% | 49.71% |
| Nonfamily Households | 13,654, 41.50%, see rank | 36.34% | 33.33% |
US Census 2000 data
Total population: 67,831
| Gallatin County | Montana | U.S. | |
| Total Households | 26,323, 100% | 358,667 | 105,480,101 |
| Average Household Size | 2.46, see rank | 2.45 | 2.59 |
| 1 Person Households | 6,353, 24.13%, see rank | 27.44% | 25.82% |
| 2 or More Person Households | 19,970, 75.87%, see rank | 72.56% | 74.18% |
| Family Households (Families) | 16,196, 61.53%, see rank | 66.19% | 68.06% |
| Average Family Size | 2.94, see rank | 2.99 | 3.14 |
| Married-Couple Family | 13,643, 51.83%, see rank | 53.55% | 51.66% |
| Nonfamily Households | 10,127, 38.47%, see rank | 33.81% | 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.