US United States Major Regions Postal Code Details
๐๏ธ Hancock ยท Mississippi
39558
Ansley
39529
Bay Saint Louis
39529
Bay St Louis
39520
Bayside Park
39572
Belle Isle
39558
Clermont Harbor
39525
Diamondhead
39556
Kiln
39558
Lakeshore
39520
Mississippi Test Facility
39529
N S T L
39529
National Space Technology LA
39522
Naval Ocean O Graphic
39572
Pearlington
39522
Stennis Ctr
39529
Stennis Sp Ct
39522
Stennis Space Center
39529
Stennis Spc Ctr
39576
Waveland
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).