The same principle explains why many rust belt cities have vast areas of abandoned tracts. It's not that they actually lost people. Regionally speaking, most of

The same principle explains why many rust belt cities have vast areas of abandoned tracts. It's not that they actually lost people. Regionally speaking, most of them didn't. But sprawl created new homes while not adding new families to live in the old ones. The math in both cases is pretty straightforward.