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A study highlighted by the Wall Street Journal today finds that 37.9 percent of households in D.C. did not own a car in 2012. Out of the 30 largest U.S. cities, Washington is only behind New York, where 56.5 percent of households don’t have cars.

The report by Michael Sivak at the University of Michigan Transportation Research Institute found that 9.2 percent of U.S. households were without a car in 2012, compared to 8.7 percent in 2007. “Recent studies have shown that—per person, per driver, and per household—we now have fewer light-duty vehicles, we drive each of them less, and we consume less fuel than in the past,” Sivak says in the study. “These trends suggest that motorization in the U.S. might have reached a peak several years ago.”

In Boston, Philadelphia, San Francisco and Baltimore, over 30 percent of households didn’t have cars in 2012. Chicago and Detroit were both over 25 percent. Data from the American Community Survey was analyzed for the report.

Factors including “income, availability and cost of parking and local weather,” as well as public transportation, can influence the decision to own a car, Sivak writes.