For over a century, American suburbs have been growing inexorably outward from central cities. Following World War II, this growth accelerated to the point where metropolitan regions in the United States now can have a 50- to 60-mile (80- to 96-km) radius. This ever-widening spread of suburbia seems to have continued through the past decade, if 2010 Census data serve as any indication. This, however, is not the whole story, and a closer look at facts on the ground suggest that the growth of the suburbs—now stalled by the housing bust—may in fact be winding down. If true, this would be a major and arguably a very beneficial shift in American urban development.