United States

New Castle Postal Codes

Complete directory of postal codes in this county

Location Information

29 counties

Counties

New Castle

Languages

  • English (United States)
  • Spanish (United States)

Coordinates

39.584270, -75.699140

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Country

United States

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Counties

Showing 29 results
Place Name
Postal Code
Bear
19701
Claymont
19703
Delaware City
19706
Hockessin
19707
Middletown
19709
Montchanin
19710
New Castle
19720
Newark
19702
Newark
19711
Newark
19713
Newark
19716
Newark
19717
Odessa
19730
Port Penn
19731
Rockland
19732
Saint Georges
19733
Townsend
19734
Wilmington
19801
Wilmington
19802
Wilmington
19803
Wilmington
19804
Wilmington
19805
Wilmington
19806
Wilmington
19807
Wilmington
19808
Wilmington
19809
Wilmington
19810
Winterthur
19735
Yorklyn
19736

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How to Find a Postal Code

Each administrative division maintains its own postal code for mail delivery purposes. Here are some tips for finding the correct postal code:

  • Search for your specific address using our search tool above
  • Browse through the list of counties in the region
  • Use the interactive map to locate your area
  • Contact your local post office for verification

Postal Code Tips

Postal codes may change occasionally. Always verify with official sources before important mailings.

Quick Facts

  • Country Code: US
  • Capital: Washington
  • Currency: Dollar (USD)
  • Phone Code: +1
  • Timezone: America/Adak (GMT-10)
  • Driving Side: Right
  • Voltage/Frequency: 120V (60Hz)
  • Plug Types:
    A - Type A plug B - Type B plug

Neighboring Countries

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