Towns include: Highlands Ranch, Parker, Castle Rock, Castle Pines, Stonegate, The Pinery, Lone Tree
Job growth (2000-2006): 38.3%
Situated between the state's two largest cities, Denver and Colorado Springs, "Dougco" is a commuter's paradise. With an astonishing 50 percent population increase since 2001, it's also the Centennial State's fastest-growing metropolitan area. The county has taken great pains during the past several years to make itself more job-friendly, attracting employers in the retail and health care sectors. The region also boasts many home-based businesses, which the county promotes through a smart "economic gardening" technical-assistance program.