US United States Major Regions Postal Code Details
๐๏ธ Clay ยท Illinois
62858
Bible Grove
62858
Blair
62824
Clay City
62839
Flora
62899
Garden Hill
62858
Hoosier
62858
Hord
62434
Ingraham
62858
Louisville
62899
Oskaloosa
62858
Riffel
62879
Sailor Springs
62899
Songer
62899
Xenia
62899
Zenith
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).