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.

Bike mode share in central DC. Image from DDOT.

This fascinating map is part of the background data DDOT is preparing to study a possible protected bikeway on or around 6th Street NW.

It shows how hugely popular bicycling can be as a mode of transportation, even in the United States. What’s more, this data actually undercounts bicycle commuters by quite a lot.

It’s originally from the US Census’ American Community Survey, which only counts the mode someone uses for the longest segment of their commute. People who bicycle a short distance to reach a Metro station, then ride Metro for the rest of their commute, count as transit riders rather than bicyclists.

 Comment on this at the version cross-posted to Greater Greater Washington.