US United States Major Regions Postal Code Details
๐๏ธ Adams ยท Illinois
62347
Adams
62349
Bigneck
62360
Bluff Hall
62301
Burton
62320
Camp Point
62347
Chestline
62324
Clayton
62325
Coatsburg
62320
Columbus
62360
Fall Creek
62338
Fowler
62339
Golden
62324
Kellerville
62346
La Prairie
62347
Liberty
62348
Lima
62349
Loraine
62301
Marblehead
62376
Marcelline
62351
Mendon
62359
Paloma
62360
Payson
62365
Plainville
62301
Quincy
62365
Richfield
62351
Tioga
62376
Ursa
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).