District of Columbia Historical Household and Family Data
ACS 2010-2014 data
Total population: 633,736
| District of Columbia | % | U.S. | |
| Total Households | 267,415 | 100% | 116,211,092 |
| Average Household Size | 2.22, see rank | - | 2.63 |
| 1 Person Households | 120,523 | 45.07%, see rank | 27.57% |
| 2 or More Person Households | 146,892 | 54.93%, see rank | 72.43% |
| Family Households (Families) | 113,596 | 42.48%, see rank | 66.22% |
| Average Family Size | 3.35, see rank | - | 3.32 |
| Married-Couple Family | 62,123 | 23.23%, see rank | 48.42% |
| Nonfamily Households | 153,819 | 57.52%, see rank | 33.78% |
US Census 2010 data
Total population: 601,723
| District of Columbia | % | U.S. | |
| Total Households | 266,707 | 100% | 116,716,292 |
| Average Household Size | 2.11, see rank | - | 2.58 |
| 1 Person Households | 117,431 | 44.03%, see rank | 26.74% |
| 2 or More Person Households | 149,276 | 55.97%, see rank | 73.26% |
| Family Households (Families) | 112,715 | 42.26%, see rank | 66.43% |
| Average Family Size | 3.01, see rank | - | 3.14 |
| Married-Couple Family | 58,659 | 21.99%, see rank | 48.42% |
| Nonfamily Households | 153,992 | 57.74%, see rank | 33.57% |
ACS 2008-2012 data
Total population: 605,759
| District of Columbia | % | U.S. | |
| Total Households | 261,192 | 100% | 115,226,802 |
| Average Household Size | 2.17, see rank | - | 2.61 |
| 1 Person Households | 121,307 | 46.44%, see rank | 27.45% |
| 2 or More Person Households | 139,885 | 53.56%, see rank | 72.55% |
| Family Households (Families) | 109,643 | 41.98%, see rank | 66.47% |
| Average Family Size | 3.31, see rank | - | 3.29 |
| Married-Couple Family | 58,132 | 22.26%, see rank | 48.97% |
| Nonfamily Households | 151,549 | 58.02%, see rank | 33.53% |
ACS 2006-2010 data
Total population: 584,400
| District of Columbia | % | U.S. | |
| Total Households | 257,317 | 100% | 114,235,996 |
| Average Household Size | 2.12, see rank | - | 2.59 |
| 1 Person Households | 120,619 | 46.88%, see rank | 27.24% |
| 2 or More Person Households | 136,698 | 53.12%, see rank | 72.76% |
| Family Households (Families) | 109,171 | 42.43%, see rank | 66.75% |
| Average Family Size | 3.22, see rank | - | 3.25 |
| Married-Couple Family | 57,033 | 22.16%, see rank | 49.60% |
| Nonfamily Households | 148,146 | 57.57%, see rank | 33.25% |
ACS 2005-2009 data
Total population: 588,433
| District of Columbia | % | U.S. | |
| Total Households | 250,723 | 100% | 112,611,029 |
| Average Household Size | 2.21, see rank | - | 2.60 |
| 1 Person Households | 117,435 | 46.84%, see rank | 27.32% |
| 2 or More Person Households | 133,288 | 53.16%, see rank | 72.68% |
| Family Households (Families) | 110,035 | 43.89%, see rank | 66.67% |
| Average Family Size | 3.37, see rank | - | 3.27 |
| Married-Couple Family | 56,144 | 22.39%, see rank | 49.71% |
| Nonfamily Households | 140,688 | 56.11%, see rank | 33.33% |
US Census 2000 data
Total population: 572,059
| District of Columbia | % | U.S. | |
| Total Households | 248,338 | 100% | 105,480,101 |
| Average Household Size | 2.16, see rank | - | 2.59 |
| 1 Person Households | 108,744 | 43.79%, see rank | 25.82% |
| 2 or More Person Households | 139,594 | 56.21%, see rank | 74.18% |
| Family Households (Families) | 114,166 | 45.97%, see rank | 68.06% |
| Average Family Size | 3.07, see rank | - | 3.14 |
| Married-Couple Family | 56,631 | 22.80%, see rank | 51.66% |
| Nonfamily Households | 134,172 | 54.03%, 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.