Americans have a clear preference for how they get to work: driving alone.
FlowingData analyzed US Census Bureau data on how Americans commute. It found that driving solo is the huge favorite. It vastly surpasses carpooling, walking, biking, or other ways of getting around.
This is the county-by-county breakdown, taken from the full interactive map:
New York City and Washington, DC, stand out as the two places in the country where more people use public transportation than drive alone to work. New York City in particular seems to be the only place where most residents in several counties take public transportation.
San Juan County, Colorado, and several counties in Alaska also stand out as places where more people walk than drive to work — although, as FlowingData pointed out, the data from San Juan County has such a large margin of error that it's hard to say whether it's significant and accurate.
Meanwhile, no US county apparently prefers bicycling to other options.