US United States Major Regions Postal Code Details
๐๏ธ Henderson ยท Illinois
61418
Biggsville
61425
Carman
61425
Carthage Lake
61480
Decorra
61437
Gladstone
61425
Gulfport
61480
Hopper
61454
Lomax
61460
Media
61480
Olena
61469
Oquawka
61471
Raritan
61425
Shokokon
61480
Stronghurst
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).