US United States Major Regions Postal Code Details
๐๏ธ Sullivan ยท New Hampshire
03601
Acworth
03603
Charlestown
03743
Claremont
03745
Cornish
03746
Cornish Flat
03773
Croydon
03605
East Lempster
03751
Georges Mills
03752
Goshen
03753
Grantham
03754
Guild
03605
Lempster
03770
Meriden
03773
Newport
03781
Plainfield
03607
South Acworth
03284
Springfield
03782
Sunapee
03743
Unity
03280
Washington
03284
West Springfield
๐ฎUS United States Regional Postal Code FAQ & Postal Regulations
๐ฎ 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.
๐ 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.
โ ๏ธ 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.
๐ Do ZIP codes ever change?
Yes, USPS may update ZIP codes due to regional adjustments. Always confirm your ZIP code after an address change.
๐ฆ 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).