US United States Major Regions Postal Code Details
๐๏ธ Park ยท Wyoming
82435
Clark
82414
Cody
82423
Frannie
82435
Garland
82190
Mammoth
82190
Mammoth Hot Springs
82435
Mantua
82433
Meeteetse
82435
Odonnell Spur
82435
Powell
82440
Ralston
82450
Wapiti
82435
Willwood
82190
Yellowstone National Park
82190
Yelwstn Nl Pk
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).