District Of Columbia County Historical Year Structure Built of Houses Data
ACS 2010-2014 data, see rank
| District Of Columbia County | District of Columbia | U.S. |
| 1951 | 1951 | 1976 |
ACS 2008-2012 data, see rank
| District Of Columbia County | District of Columbia | U.S. |
| 1950 | 1950 | 1975 |
ACS 2006-2010 data, see rank
| District Of Columbia County | District of Columbia | U.S. |
| 1950 | 1950 | 1975 |
ACS 2005-2009 data, see rank
| District Of Columbia County | District of Columbia | U.S. |
| 1949 | 1949 | 1974 |
US Census 2000 data, see rank
| District Of Columbia County | District of Columbia | U.S. |
| 1949 | 1949 | 1971 |
* 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.
