US United States Major Regions Postal Code Details
๐๏ธ Bonneville ยท Idaho
83406
Ammon
83401
Beachs Corner
83401
Bone
83401
Coltman
83402
Eagle Rock
83401
Grant
83401
Hillview
83404
Idaho Falls
83415
Idaho National Lab
83427
Iona
83428
Irwin
83401
Lincoln
83401
New Sweden
83401
Osgood
83428
Palisades
83401
Saint Leon
83415
Scoville
83401
Shelton
83449
Swan Valley
83401
Taylor
83454
Ucon
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).