US United States Major Regions Postal Code Details
๐๏ธ Brown ยท South Dakota
57401
Aberdeen
57426
Barnard
57427
Bath
57401
Beebe
57426
Brainard
57432
Claremont
57433
Columbia
57441
Elm Lake
57439
Ferney
57441
Frederick
57445
Groton
57446
Hecla
57449
Houghton
57432
Huffton
57445
James
57460
Mansfield
57401
Ordway
57445
Putney
57474
Randolph
57433
Sand Lake
57474
Stratford
57433
Tacoma Park
57479
Warner
57481
Westport
57481
Wetonka
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).