US United States Major Regions Postal Code Details
๐๏ธ Jefferson ยท Missouri
63052
Antonia
63010
Arnold
63012
Barnhart
63049
Byrnes Mill
63016
Cedar Hill
63019
Crystal City
63020
De Soto
63023
Dittmer
63028
Festus
63030
Fletcher
63047
Hematite
63048
Herculaneum
63049
High Ridge
63050
Hillsboro
63070
Horine
63051
House Springs
63053
Imperial
63053
Kimmswick
63051
La Barque Crk
63016
Lake Adelle
63057
Liguori
63065
Mapaville
63066
Morse Mill
63020
Olympian Village
63052
Otto
63070
Pevely
63052
Sulphur Springs
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).