| | New Castle County | DE | 10003 | Wilmington, DE-MD-NJ 48864 | Philadelphia-Camden-Wilmington,
PA-NJ-DE-MD 37980 | Philadelphia-Reading-Camden,
PA-NJ-DE-MD 428 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=NewCastleCounty+DE |
| | Cecil County | MD | 24015 | Wilmington, DE-MD-NJ 48864 | Philadelphia-Camden-Wilmington,
PA-NJ-DE-MD 37980 | Philadelphia-Reading-Camden,
PA-NJ-DE-MD 428 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=CecilCounty+MD |
| | Salem County | NJ | 34033 | Wilmington, DE-MD-NJ 48864 | Philadelphia-Camden-Wilmington,
PA-NJ-DE-MD 37980 | Philadelphia-Reading-Camden,
PA-NJ-DE-MD 428 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=SalemCounty+NJ |