US United States Major Regions Postal Code Details
๐๏ธ Cassia ยท Idaho
83311
Albion
83312
Almo
83346
Basin
83318
Burley
83346
Churchill
83323
Cotterel
83323
Declo
83342
Elba
83323
Idahome
83342
Malta
83346
Oakley
83318
Pella
83318
Springdale
83318
Starrhs Ferry
83318
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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).