See Sightline’s 2004 update, The Portland Exception
This analysis finds that in the 1990s, while greater Portland’s three Oregon counties “grew smarter,” neighboring Clark County sprawled—and lost more rural land and open space per new resident, as a result. “Few areas in North America provide such a stark illustration of different approaches to planning,” says Sightline research director Clark Williams-Derry.
Sprawl and Smart Growth in Metropolitan Portland