US United States Major Regions Postal Code Details
๐๏ธ Saginaw ยท Michigan
48663
Ameritech
48663
AT&T
48415
Birch Run
48614
Brant
48722
Bridgeport
48417
Burt
48724
Carrollton
48616
Chesaning
48787
Frankenmuth
48787
Frankenmuth Mutual Ins Co
48623
Freeland
48626
Hemlock
48637
Merrill
48649
Oakley
48603
Saginaw
48655
Saint Charles
48604
Zilwaukee
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).