From a May 5th article in the Chronicle of Philanthropy on how racial bias impedes diversity at nonprofits:

A 2010 Urban Institute report found that people of color are underrepresented on nonprofit boards in the Baltimore-Washington area, given their share in the region’s population. The report found that 77 percent of nonprofit board members in the area are white, and some boards—24 percent of them—are completely made up of white people. (my emphasis)

Mayor Gray’s proposed One City Fund (which includes, as one if its goals, “growing and diversifying our economy”) could be a great opportunity to do something about this, by awarding grants to nonprofits in D.C. that either have diverse leadership in place, or at least can demonstrate that they have a clear commitment to do so. Here’s a group that has done some good work on this issue.