US United States Major Regions Postal Code Details
🏛️ Essex · Massachusetts
01913Amesbury
Amesbury essex massachusetts 01913 United States
05501Andover
Andover essex massachusetts 05501 United States
01899Bar Coded Irs
Bar Coded Irs essex massachusetts 01899 United States
01915Beverly
Beverly essex massachusetts 01915 United States
01915Beverly Farms
Beverly Farms essex massachusetts 01915 United States
01921Boxford
Boxford essex massachusetts 01921 United States
01835Bradford
Bradford essex massachusetts 01835 United States
01922Byfield
Byfield essex massachusetts 01922 United States
01923Danvers
Danvers essex massachusetts 01923 United States
01904East Lynn
East Lynn essex massachusetts 01904 United States
01929Essex
Essex essex massachusetts 01929 United States
01910General Elec Co
General Elec Co essex massachusetts 01910 United States
01833Georgetown
Georgetown essex massachusetts 01833 United States
01930Gloucester
Gloucester essex massachusetts 01930 United States
01834Groveland
Groveland essex massachusetts 01834 United States
01936Hamilton
Hamilton essex massachusetts 01936 United States
01937Hathorne
Hathorne essex massachusetts 01937 United States
01831Haverhill
Haverhill essex massachusetts 01831 United States
05501Internal Revenue Service
Internal Revenue Service essex massachusetts 05501 United States
01938Ipswich
Ipswich essex massachusetts 01938 United States
01843Lawrence
Lawrence essex massachusetts 01843 United States
01901Lynn
Lynn essex massachusetts 01901 United States
01940Lynnfield
Lynnfield essex massachusetts 01940 United States
01930Magnolia
Magnolia essex massachusetts 01930 United States
01944Manchester
Manchester essex massachusetts 01944 United States
01944Manchester By The Sea
Manchester By The Sea essex massachusetts 01944 United States
01945Marblehead
Marblehead essex massachusetts 01945 United States
01860Merrimac
Merrimac essex massachusetts 01860 United States
01844Methuen
Methuen essex massachusetts 01844 United States
01949Middleton
Middleton essex massachusetts 01949 United States
01908Nahant
Nahant essex massachusetts 01908 United States
01951Newbury
Newbury essex massachusetts 01951 United States
01950Newburyport
Newburyport essex massachusetts 01950 United States
01845North Andover
North Andover essex massachusetts 01845 United States
01960Peabody
Peabody essex massachusetts 01960 United States
01966Pigeon Cove
Pigeon Cove essex massachusetts 01966 United States
01950Plum Island
Plum Island essex massachusetts 01950 United States
01965Prides Crossing
Prides Crossing essex massachusetts 01965 United States
01966Rockport
Rockport essex massachusetts 01966 United States
01969Rowley
Rowley essex massachusetts 01969 United States
01971Salem
Salem essex massachusetts 01971 United States
01952Salisbury
Salisbury essex massachusetts 01952 United States
01952Salisbury Beach
Salisbury Beach essex massachusetts 01952 United States
01906Saugus
Saugus essex massachusetts 01906 United States
01982South Hamilton
South Hamilton essex massachusetts 01982 United States
01843South Lawrence
South Lawrence essex massachusetts 01843 United States
01940South Lynnfield
South Lynnfield essex massachusetts 01940 United States
01907Swampscott
Swampscott essex massachusetts 01907 United States
01983Topsfield
Topsfield essex massachusetts 01983 United States
01835Ward Hill
Ward Hill essex massachusetts 01835 United States
01984Wenham
Wenham essex massachusetts 01984 United States
01885West Boxford
West Boxford essex massachusetts 01885 United States
01905West Lynn
West Lynn essex massachusetts 01905 United States
01985West Newbury
West Newbury essex massachusetts 01985 United States
01960West Peabody
West Peabody essex massachusetts 01960 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.
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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.
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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.
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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.
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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).
