I have included the GGW post image here.
Note that Bloomingdale is one of the DC neighborhoods that have a greater than 20% who commute to work by bicycle.
Over 20% of commuters in Bloomingdale, Mount Pleasant, and Petworth get to work each day primarily using a bicycle. That doesn't even include people who use bikes to reach Metro.
...and here is the Washington Post story on this same topic from reporter Perry Stein:
More than 20 percent of residents bike to work in these three D.C. neighborhoods