Region
Delaware
Penn
New Castle Co
6
Pennsylvania
6
New Jersey
4
Philadelphia
4
Philadelphia Metropolitan Area
3
Wilmington
3
Delaware River Estuary
2
Delaware River Valley (N.Y.-Del. and N.J.)
2
Camden
1
Camden Co
1
Gloucester City
1
New Sweden
1
Newark
1
Philadelphia (Pa.)
1
Philadelphia Region
1
Wilmington Metropolitan Area
1