US United States Major Regions Postal Code Details
๐๏ธ Hamilton ยท Illinois
62828
Belle Prairie City
62817
Broughton
62859
Crook
62828
Dahlgren
62859
Dale
62859
Delafield
62859
Knight Prairie
62860
Macedonia
62817
Mayberry
62859
Mc Leansboro
62859
Piopolis
62859
South Crouch
62817
South Twigg
62859
Thackeray
62829
Twigg
62817
Walpole
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).