US United States Major Regions Postal Code Details
๐๏ธ De Kalb ยท Indiana
46738
Altona
46721
Artic
46705
Ashley
46706
Auburn
46706
Auburn Junction
46721
Butler
46738
Butler Center
46738
Cedar Creek
46730
Corunna
46738
Dutch Town
46730
Fairfield Center
46738
Garrett
46730
Indian Lake
46738
Keyser
46721
Moore
46721
Newville
46706
Norland Park
46785
Saint Joe
46793
Sedan
46705
Steuben
46705
Steubenville
46793
Waterloo
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).