Catherine Reagor | Arizona Republic
Metro Phoenix is expected to grow by 1 million people during the next decade.
That will be like adding a city the size of San Jose, California, or Austin, Texas, to the Valley.
The billion-dollar question is where all those new residents will live.
Most of the available land is on the edge of the West Valley and deep into Pinal County in the southeast Valley.
About 5 million people already call metro Phoenix home, and the region already faces infrastructure and housing affordability issues.