More than a fifth of U.S. city-dwellers use public transit on a regular basis, according to a survey conducted by the Pew Research Center in late 2015. Pew looked at which U.S. adults use public transportation most frequently and where they live. The Greater New York City area tops the list. The city hosting the next largest amount of transit users is Los Angeles. Washington, D.C., Boston and Philadelphia do make the top 10 list. Even though 80 percent of Americans live in urban areas, roughly 45 percent of households still have zero transit access, according to the survey.

By highlighting who relies on public transit the most, Pew also reveals which commuters are likely the most impacted by the country‚Äôs aging infrastructure. A 2013 Federal Transit Administration report estimated that “more than 40% of buses and 25% of rail transit around the U.S. are in marginal or poor condition.” Since immigrants and lower-income workers rely on transit in greater numbers to get to work, poor transit conditions can hold these groups back economically.