US United States Major Regions Postal Code Details
🏛️ Washington · Maine
04606Addison
Addison washington maine 04606 United States
04694Alexander
Alexander washington maine 04694 United States
04694Baileyville
Baileyville washington maine 04694 United States
04694Baring Plt
Baring Plt washington maine 04694 United States
04611Beals
Beals washington maine 04611 United States
04622Beddington
Beddington washington maine 04622 United States
04668Big Lake Twp
Big Lake Twp washington maine 04668 United States
04413Brookton
Brookton washington maine 04413 United States
04655Bucks Harbor
Bucks Harbor washington maine 04655 United States
04619Calais
Calais washington maine 04619 United States
04657Cathance Twp
Cathance Twp washington maine 04657 United States
04623Centerville
Centerville washington maine 04623 United States
04666Charlotte
Charlotte washington maine 04666 United States
04622Cherryfield
Cherryfield washington maine 04622 United States
04490Codyville Plt
Codyville Plt washington maine 04490 United States
04623Columbia
Columbia washington maine 04623 United States
04623Columbia Falls
Columbia Falls washington maine 04623 United States
04657Cooper
Cooper washington maine 04657 United States
04694Crawford
Crawford washington maine 04694 United States
04626Cutler
Cutler washington maine 04626 United States
04424Danforth
Danforth washington maine 04424 United States
04654Day Block Twp
Day Block Twp washington maine 04654 United States
04622Deblois
Deblois washington maine 04622 United States
04628Dennysville
Dennysville washington maine 04628 United States
04630East Machias
East Machias washington maine 04630 United States
04631Eastport
Eastport washington maine 04631 United States
04628Edmunds Twp
Edmunds Twp washington maine 04628 United States
04413Forest City Twp
Forest City Twp washington maine 04413 United States
04413Forest Twp
Forest Twp washington maine 04413 United States
04668Grand Lake Stream
Grand Lake Stream washington maine 04668 United States
04668Greenlaw Chopping Twp
Greenlaw Chopping Twp washington maine 04668 United States
04643Harrington
Harrington washington maine 04643 United States
04668Indian Twp
Indian Twp washington maine 04668 United States
04648Jonesboro
Jonesboro washington maine 04648 United States
04649Jonesport
Jonesport washington maine 04649 United States
04454Lambert Lake
Lambert Lake washington maine 04454 United States
04652Lubec
Lubec washington maine 04652 United States
04686Machias
Machias washington maine 04686 United States
04655Machiasport
Machiasport washington maine 04655 United States
04628Marion Twp
Marion Twp washington maine 04628 United States
04654Marshfield
Marshfield washington maine 04654 United States
04657Meddybemps
Meddybemps washington maine 04657 United States
04658Milbridge
Milbridge washington maine 04658 United States
04654Northfield
Northfield washington maine 04654 United States
04666Pembroke
Pembroke washington maine 04666 United States
04667Perry
Perry washington maine 04667 United States
04667Pleasant Point
Pleasant Point washington maine 04667 United States
04668Princeton
Princeton washington maine 04668 United States
04671Robbinston
Robbinston washington maine 04671 United States
04654Roque Bluffs
Roque Bluffs washington maine 04654 United States
04680Steuben
Steuben washington maine 04680 United States
04492Talmadge
Talmadge washington maine 04492 United States
04490Topsfield
Topsfield washington maine 04490 United States
04652Trescott Twp
Trescott Twp washington maine 04652 United States
04491Vanceboro
Vanceboro washington maine 04491 United States
04490Waite
Waite washington maine 04490 United States
04686Wesley
Wesley washington maine 04686 United States
04424Weston
Weston washington maine 04424 United States
04691Whiting
Whiting washington maine 04691 United States
04654Whitneyville
Whitneyville washington maine 04654 United States
04694Woodland Washington County
Woodland Washington County washington maine 04694 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).
