New Castle Zip Codes - New Castle County DE

New Castle, DE Zip Code Map

New Castle, DE is a city located in New Castle County, Delaware and has a land area of 38.30 square miles (99.20 km2). The water area for the city is 3.08 square miles or 7.98 km2. There are 3 total unique zip codes in New Castle, Delaware. The area code(s) for New Castle is 302.

Zip Codes for New Castle, DE (3)
Zip Code
 City County
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19720 New Castle New Castle
19721 New Castle New Castle
19726 New Castle New Castle

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