New Castle County post codes
Codes
52About New Castle County
New Castle County is in Delaware (DE), United States. It covers 17 places and 52 post codes in the 5 digits format.
This page contains 52 post code records. Every post code on this page maps to a single place.
Nearby counties include Kent County, Sussex County. Other counties in Delaware (DE) include Kent County, Sussex County.
Addresses in New Castle County usually include the place, county, state, post code, and country; confirm the local order before mailing.
At a glance
Address example
Postal formats vary by country; these are the address elements.
Other counties in Delaware (DE)
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Shared post codes
Every post code on this page maps to a single place.
Location
FAQ
How many places are in New Castle County?
17
How many post codes are in New Castle County?
52
Which state is New Castle County in?
Delaware (DE)
What is the post code format?
5 digits