Boulder County Historical Household and Family Data
ACS 2010-2014 data
Total population: 305,166
| Boulder County | Colorado | U.S. | |
| Total Households | 121,526, 100% | 1,998,314 | 116,211,092 |
| Average Household Size | 2.43, see rank | 2.54 | 2.63 |
| 1 Person Households | 33,894, 27.89%, see rank | 28.04% | 27.57% |
| 2 or More Person Households | 87,632, 72.11%, see rank | 71.96% | 72.43% |
| Family Households (Families) | 71,826, 59.10%, see rank | 64.18% | 66.22% |
| Average Family Size | 3.07, see rank | 3.22 | 3.32 |
| Married-Couple Family | 56,895, 46.82%, see rank | 49.32% | 48.42% |
| Nonfamily Households | 49,700, 40.90%, see rank | 35.82% | 33.78% |
US Census 2010 data
Total population: 294,567
| Boulder County | Colorado | U.S. | |
| Total Households | 119,300, 100% | 1,972,868 | 116,716,292 |
| Average Household Size | 2.39, see rank | 2.49 | 2.58 |
| 1 Person Households | 34,621, 29.02%, see rank | 27.92% | 26.74% |
| 2 or More Person Households | 84,679, 70.98%, see rank | 72.08% | 73.26% |
| Family Households (Families) | 68,891, 57.75%, see rank | 63.94% | 66.43% |
| Average Family Size | 3.00, see rank | 3.08 | 3.14 |
| Married-Couple Family | 55,358, 46.40%, see rank | 49.24% | 48.42% |
| Nonfamily Households | 50,409, 42.25%, see rank | 36.06% | 33.57% |
ACS 2008-2012 data
Total population: 297,218
| Boulder County | Colorado | U.S. | |
| Total Households | 120,061, 100% | 1,962,753 | 115,226,802 |
| Average Household Size | 2.39, see rank | 2.51 | 2.61 |
| 1 Person Households | 34,089, 28.39%, see rank | 28.25% | 27.45% |
| 2 or More Person Households | 85,972, 71.61%, see rank | 71.75% | 72.55% |
| Family Households (Families) | 70,680, 58.87%, see rank | 64.20% | 66.47% |
| Average Family Size | 3.05, see rank | 3.19 | 3.29 |
| Married-Couple Family | 56,965, 47.45%, see rank | 49.82% | 48.97% |
| Nonfamily Households | 49,381, 41.13%, see rank | 35.80% | 33.53% |
ACS 2006-2010 data
Total population: 290,177
| Boulder County | Colorado | U.S. | |
| Total Households | 117,629, 100% | 1,918,959 | 114,235,996 |
| Average Household Size | 2.37, see rank | 2.49 | 2.59 |
| 1 Person Households | 34,018, 28.92%, see rank | 28.20% | 27.24% |
| 2 or More Person Households | 83,611, 71.08%, see rank | 71.80% | 72.76% |
| Family Households (Families) | 68,953, 58.62%, see rank | 64.41% | 66.75% |
| Average Family Size | 3.04, see rank | 3.15 | 3.25 |
| Married-Couple Family | 55,529, 47.21%, see rank | 50.26% | 49.60% |
| Nonfamily Households | 48,676, 41.38%, see rank | 35.59% | 33.25% |
ACS 2005-2009 data
Total population: 295,524
| Boulder County | Colorado | U.S. | |
| Total Households | 115,180, 100% | 1,869,276 | 112,611,029 |
| Average Household Size | 2.48, see rank | 2.53 | 2.60 |
| 1 Person Households | 32,620, 28.32%, see rank | 28.22% | 27.32% |
| 2 or More Person Households | 82,560, 71.68%, see rank | 71.78% | 72.68% |
| Family Households (Families) | 68,396, 59.38%, see rank | 64.39% | 66.67% |
| Average Family Size | 3.14, see rank | 3.21 | 3.27 |
| Married-Couple Family | 55,630, 48.30%, see rank | 50.63% | 49.71% |
| Nonfamily Households | 46,784, 40.62%, see rank | 35.61% | 33.33% |
US Census 2000 data
Total population: 291,288
| Boulder County | Colorado | U.S. | |
| Total Households | 114,680, 100% | 1,658,238 | 105,480,101 |
| Average Household Size | 2.47, see rank | 2.53 | 2.59 |
| 1 Person Households | 30,138, 26.28%, see rank | 26.28% | 25.82% |
| 2 or More Person Households | 84,542, 73.72%, see rank | 73.72% | 74.18% |
| Family Households (Families) | 68,787, 59.98%, see rank | 65.40% | 68.06% |
| Average Family Size | 3.03, see rank | 3.09 | 3.14 |
| Married-Couple Family | 56,087, 48.91%, see rank | 51.78% | 51.66% |
| Nonfamily Households | 45,893, 40.02%, see rank | 34.60% | 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.