Note: Every ZIP Code has a single ACTUAL City Name assigned by the US Postal Service (USPS).
See the specific ZIP Code for acceptable Alternate City Names and spelling variations.
ZIP Codes in New Castle County Address Data
Businesses Addresses: 19,158
PO Box Addresses: 7,527
Residential Addresses: 244,199
Multi-Family Addresses: 28,971
Single Family Addresses: 213,852
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Map of New Castle County, DE ZIP Codes With Actual (Default) City Names