Whatever term people prefer--Delaware Valley, Southeastern PA, or Greater Philadelphia--the area encompassing Bucks, Chester, Delaware, Montgomery, and Philadelphia counties, Southern New Jersey, and New Castle County, Del., maintains a prominent role in the growth of the state and national economy. Representing the country's fifth-largest metropolitan region and more than six million people, institutions like Select Greater Philadelphia, the Greater Philadelphia Cultural Alliance, Delaware Valley Industrial Resource Center, and the Economy League of Greater Philadelphia help tout, organize and shape the area's many assets, most notably including lower cost of living, top-notch education, and leadership in multiple growth areas like IT, financial services and life sciences.