A bit from from Greater Greater Washington
50.4% of DC residents commute without an automobile. Boston beats us by a hair (50.8%) and New York beats us by a bit more (65.8%). Only 22.9% of commuters in Portland, a city often lauded as a model of good planning, commute without an automobile. Even Baltimore does better at 25.2%. (Transport Politic)
https://greatergreaterwashington.org/post.cgi?id=7627oldId.20101014182827879