To further the awareness of community darkroom space, in the Washington DC metro area I am aware of at least two - there are probably more.
In Glen Echo, Maryland, there is Glen Echo Photoworks, which has rental darkrooms, digital workspace and gallery/exhibition space. http://www.glenechophotoworks.org
In Rockville, Maryland, there is the Washington School of Photography, which has rental darkrooms, rental studios, and exhibition space. http://www.washingtonschoolofphotography.com/
VisArts art center in Rockville, Maryland USED to have a rental darkroom, but still has studio space. They MIGHT be able to be coerced into restoring their darkroom if enough people asked for it. http://www.visartsatrockville.org/