The USPS uses Delaware postal codes to identify specific geographic locations and improve the efficiency of the mail delivery system in the USA. In Delaware, ZIP Codes are used to ensure that mail is delivered to the correct location within the state. The first digit of a ZIP Code indicates a general region, the second and third digits indicate a specific region within that region, and the fourth and fifth digits indicate a specific delivery area or post office. ZIP Codes are an essential part of the mail delivery system in Delaware.
New Castle
Post Office
New Castle
Division
New Castle
Pincode
19720
Newark
Post Office
Newark
Division
New Castle
Pincode
19702
Newark
Post Office
Newark
Division
New Castle
Pincode
19711
Middletown
Post Office
Middletown
Division
New Castle
Pincode
19709
Bear
Post Office
Bear
Division
New Castle
Pincode
19701
Dover
Post Office
Dover
Division
Kent
Pincode
19901
Total Post Office (96) Page 1 of 16 1
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