D.C. population data from the 2010 census.
According to the 2010 census, half of Washington's 601,000 residents are black, while nearly 35 percent are white.
Over the past decade, the District has gained 50,000 white residents and lost nearly 40,000 black residents.
The last time D.C. did not have a black majority was 1950.
Overall, the district's population has grown by nearly 30,000 since 2000.
The new data shows that increase was driven mostly by whites but also by Hispanics and Asians.
The new census figures will also be important for redistricting. Ward 2 now has too many people and will need to shrink, while Wards 7 and 8 will need to grow.