Delaware Gazetteer
New Castle is the actual or alternate city name associated with 3 ZIP Codes by the US Postal Service.
Select a particular New Castle ZIP Code to view a more detailed map and the number of Business, Residential, and PO Box addresses for that ZIP Code. The Residential addresses are segmented by both Single and Multi-family addessses.
Each individual New Castle ZIP Code profile also includes Demographic Data including Population, Housing, Income, Households, and Growth Rates.
| New Castle, DE - Standard ZIP Codes |
| 19720 |
| New Castle, DE - Unique - Single Entity ZIP Codes (NO DEMOGRAPHIC DATA) |
| 19721 19726 |
