US United States Major Regions Postal Code Details
🏛️ New London · Connecticut
06330Baltic
Baltic new london connecticut 06330 United States
06340Borough
Borough new london connecticut 06340 United States
06334Bozrah
Bozrah new london connecticut 06334 United States
06340Center Groton
Center Groton new london connecticut 06340 United States
06370Chesterfield
Chesterfield new london connecticut 06370 United States
06420Colchester
Colchester new london connecticut 06420 United States
06333East Lyme
East Lyme new london connecticut 06333 United States
06249Exeter
Exeter new london connecticut 06249 United States
06334Fitchville
Fitchville new london connecticut 06334 United States
06254Franklin
Franklin new london connecticut 06254 United States
06254Franklin Hill
Franklin Hill new london connecticut 06254 United States
06320Ft Trumbull
Ft Trumbull new london connecticut 06320 United States
06339Gales Ferry
Gales Ferry new london connecticut 06339 United States
06336Gilman
Gilman new london connecticut 06336 United States
06384Glasgo
Glasgo new london connecticut 06384 United States
06351Griswold
Griswold new london connecticut 06351 United States
06349Groton
Groton new london connecticut 06349 United States
06340Groton Long Point
Groton Long Point new london connecticut 06340 United States
06439Hadlyme
Hadlyme new london connecticut 06439 United States
06350Hanover
Hanover new london connecticut 06350 United States
06351Hopeville
Hopeville new london connecticut 06351 United States
06351Jewett City
Jewett City new london connecticut 06351 United States
06385Jordan Village
Jordan Village new london connecticut 06385 United States
06340Jupiter Point
Jupiter Point new london connecticut 06340 United States
06249Lebanon
Lebanon new london connecticut 06249 United States
06339Ledyard
Ledyard new london connecticut 06339 United States
06351Lisbon
Lisbon new london connecticut 06351 United States
06378Lords Point
Lords Point new london connecticut 06378 United States
06371Lyme
Lyme new london connecticut 06371 United States
06338Mashantucket
Mashantucket new london connecticut 06338 United States
06355Masons Island
Masons Island new london connecticut 06355 United States
06385Millstone
Millstone new london connecticut 06385 United States
06353Montville
Montville new london connecticut 06353 United States
06355Mystic
Mystic new london connecticut 06355 United States
06349Naval Submarine Base
Naval Submarine Base new london connecticut 06349 United States
06349Navsub Base
Navsub Base new london connecticut 06349 United States
06320New London
New London new london connecticut 06320 United States
06357Niantic
Niantic new london connecticut 06357 United States
06340Noank
Noank new london connecticut 06340 United States
06254North Franklin
North Franklin new london connecticut 06254 United States
06371North Lyme
North Lyme new london connecticut 06371 United States
06359North Stonington
North Stonington new london connecticut 06359 United States
06474North Westchester
North Westchester new london connecticut 06474 United States
06365Norwich
Norwich new london connecticut 06365 United States
06360Norwichtown
Norwichtown new london connecticut 06360 United States
06370Oakdale
Oakdale new london connecticut 06370 United States
06360Occum
Occum new london connecticut 06360 United States
06371Old Lyme
Old Lyme new london connecticut 06371 United States
06372Old Mystic
Old Mystic new london connecticut 06372 United States
06379Pawcatuck
Pawcatuck new london connecticut 06379 United States
06376Point O Woods
Point O Woods new london connecticut 06376 United States
06360Poquetanuck
Poquetanuck new london connecticut 06360 United States
06340Poquonock Bridge
Poquonock Bridge new london connecticut 06340 United States
06365Preston
Preston new london connecticut 06365 United States
06375Quaker Hill
Quaker Hill new london connecticut 06375 United States
06420Salem
Salem new london connecticut 06420 United States
06378Shawondassee
Shawondassee new london connecticut 06378 United States
06376South Lyme
South Lyme new london connecticut 06376 United States
06330Sprague
Sprague new london connecticut 06330 United States
06378Stonington
Stonington new london connecticut 06378 United States
06349Sub Base New London
Sub Base New London new london connecticut 06349 United States
06349Submarine Base
Submarine Base new london connecticut 06349 United States
06380Taftville
Taftville new london connecticut 06380 United States
06382Uncasville
Uncasville new london connecticut 06382 United States
06320United States Coast Guard
United States Coast Guard new london connecticut 06320 United States
06320US Coast Guard Acad
US Coast Guard Acad new london connecticut 06320 United States
06383Versailles
Versailles new london connecticut 06383 United States
06384Voluntown
Voluntown new london connecticut 06384 United States
06385Waterford
Waterford new london connecticut 06385 United States
06388West Mystic
West Mystic new london connecticut 06388 United States
06389Yantic
Yantic new london connecticut 06389 United States
📋 United States Address and Delivery Guidance
📮
Use a Complete Delivery Address:
Include the recipient name, building or street address, locality, region where applicable, postal code when the destination uses one, and the destination country or territory.
🌍
Follow Local Address Conventions:
Use the language, character set and address order requested by the recipient, official postal operator or carrier. Do not assume every destination uses the same postal-code format.
✅
Verify Before Dispatch:
Confirm the postal code, service coverage and any customs or carrier requirements with the recipient and the relevant official postal operator before shipping.
💡
Delivery Information Is Context-Specific:
Postal codes help routing only in territories that use them. Accurate recipient details remain essential for delivery in every destination.
Postal information, sources and verification
Use this page as a routing reference and confirm the complete address, postal code format and delivery restrictions with the relevant official postal operator or carrier before dispatch.
Editorial and service accountability
This postal-code reference is maintained by the 56ok.com logistics-content team for international shipping preparation. It is reviewed against publicly available postal-operator information; it is not an official postal authority and does not replace carrier or customs instructions.
This reference is maintained as postal and carrier information changes. Need a correction? Contact our team.
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📮United States Postal FAQ and delivery guidance
📮 What is the format of a US ZIP code?
Standard format is 5 digits (e.g., 10001). Extended format is ZIP+4 (9 digits like 10001-1234) with a hyphen.
🔍 How to find the ZIP code for an address?
Use the USPS ZIP Code Lookup tool by entering the full address on the official USPS website.
⚠️ What happens if I use a wrong ZIP code?
Mail may be delayed, returned, or lost. For important documents, use USPS tracking and verify the ZIP code.
🔄 Do ZIP codes ever change?
Yes, USPS may update ZIP codes due to regional adjustments. Always confirm your ZIP code after an address change.
📦 Is a ZIP code required for international mail to the US?
Absolutely. Always include the US ZIP code at the end of the address (e.g., New York, NY 10001 USA).
