US United States Major Regions Postal Code Details
๐๏ธ Warren ยท Illinois
61417
Berwick
61423
Cameron
61453
Eleanor
61478
Ellison
61435
Gerlaw
61447
Kirkwood
61462
Larchland
61453
Little York
61462
Monmouth
61462
Ormonde
61473
Roseville
61447
Rozetta
61478
Smithshire
61473
Swan Creek
61447
Tompkins
61473
Youngstown
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).