The District’s homeless population increased 34 percent between 2009 and 2016, according to a U.S. Conference of Mayors report on hunger and homelessness. It decreased 5.5 percent from 2018 to 2019, according to the Point-in-Time count. That was attributed to a drop in homeless families, even as the number of single adults who were homeless increased.
https://www.washingtonpost.com/local/no-room-on-the-street-dc-orders-homeless-out-of-underpass-in-fast-developing-neighborhood/2020/01/10/1704d604-319c-11ea-9313-6cba89b1b9fb_story.html
https://www.washingtonpost.com/local/dc-clears-longtime-homeless-encampment-near-union-station/2020/01/16/27344240-37a4-11ea-a01d-b7cc8ec1a85d_story.html