US United States Major Regions Postal Code Details
๐๏ธ Bethel ยท Alaska
99551
Akiachak
99552
Akiak
99557
Aniak
99559
Atmautluak
99690
Bethel
99561
Chefornak
99557
Chuathbaluk
99575
Crooked Creek
99578
Eek
99589
Goodnews Bay
99607
Kalskag
99609
Kasigluk
99614
Kipnuk
99545
Kongiganak
99621
Kwethluk
99622
Kwigillingok
99626
Lower Kalskag
99630
Mekoryuk
99634
Napakiak
99559
Napaskiak
99559
Newtok
99690
Nightmute
99641
Nunapitchuk
99651
Platinum
99655
Quinhagak
99656
Red Devil
99668
Sleetmute
99557
Stony River
99637
Toksook Bay
99679
Tuluksak
99680
Tuntutuliak
99681
Tununak
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).