How many people drive cars in the United States?

USA Today reports that there were roughly 210 million licensed drivers in the United States as of 2010. Of these, 105.7 million are women and 104.3 million are men, the first time more women than men have had driver's licenses since the mid-1990s.

In 2010, there were roughly 100 million more licensed drivers in the United States than there were in 1970. At that time, there were about 112 million Americans that had drivers' licenses, which amounted to about 487 drivers for every 1,000 Americans. Conversely, in 2009, there were 685 drivers for every 1,000 Americans, according to the Office of Highway Policy Information.