US United States Major Regions Postal Code Details
🏛️ Saint Clair · Illinois
62207Alorton
Alorton saint clair illinois 62207 United States
62226Belleville
Belleville saint clair illinois 62226 United States
62059Brooklyn
Brooklyn saint clair illinois 62059 United States
62206Cahokia
Cahokia saint clair illinois 62206 United States
62232Caseyville
Caseyville saint clair illinois 62232 United States
62207Centreville
Centreville saint clair illinois 62207 United States
62255Darmstadt
Darmstadt saint clair illinois 62255 United States
62239Dupo
Dupo saint clair illinois 62239 United States
62240East Carondelet
East Carondelet saint clair illinois 62240 United States
62206East Saint Louis
East Saint Louis saint clair illinois 62206 United States
62201Fairmont City
Fairmont City saint clair illinois 62201 United States
62208Fairview Heights
Fairview Heights saint clair illinois 62208 United States
62232Fairview Hieghts
Fairview Hieghts saint clair illinois 62232 United States
62258Fayetteville
Fayetteville saint clair illinois 62258 United States
62243Freeburg
Freeburg saint clair illinois 62243 United States
62232Hollywood Heights
Hollywood Heights saint clair illinois 62232 United States
62240Imbs
Imbs saint clair illinois 62240 United States
62254Lebanon
Lebanon saint clair illinois 62254 United States
62255Lenzburg
Lenzburg saint clair illinois 62255 United States
62059Lovejoy
Lovejoy saint clair illinois 62059 United States
62257Marissa
Marissa saint clair illinois 62257 United States
62258Mascoutah
Mascoutah saint clair illinois 62258 United States
62260Millstadt
Millstadt saint clair illinois 62260 United States
62071National Stock Yards
National Stock Yards saint clair illinois 62071 United States
62264New Athens
New Athens saint clair illinois 62264 United States
62269O Fallon
O Fallon saint clair illinois 62269 United States
62221Rentchler
Rentchler saint clair illinois 62221 United States
62282Saint Libory
Saint Libory saint clair illinois 62282 United States
62206Sauget
Sauget saint clair illinois 62206 United States
62225Scott AFB
Scott AFB saint clair illinois 62225 United States
62225Scott Air Force Base
Scott Air Force Base saint clair illinois 62225 United States
62226Shiloh
Shiloh saint clair illinois 62226 United States
62223Signal Hill
Signal Hill saint clair illinois 62223 United States
62285Smithton
Smithton saint clair illinois 62285 United States
62059Stites
Stites saint clair illinois 62059 United States
62289Summerfield
Summerfield saint clair illinois 62289 United States
62226Swansea
Swansea saint clair illinois 62226 United States
62205Washingtn Park
Washingtn Park saint clair illinois 62205 United States
📋 United States Address and Delivery Guidance
📮
Use a Complete Delivery Address:
Include the recipient name, building or street address, locality, region where applicable, postal code when the destination uses one, and the destination country or territory.
🌍
Follow Local Address Conventions:
Use the language, character set and address order requested by the recipient, official postal operator or carrier. Do not assume every destination uses the same postal-code format.
✅
Verify Before Dispatch:
Confirm the postal code, service coverage and any customs or carrier requirements with the recipient and the relevant official postal operator before shipping.
💡
Delivery Information Is Context-Specific:
Postal codes help routing only in territories that use them. Accurate recipient details remain essential for delivery in every destination.
Postal information, sources and verification
Use this page as a routing reference and confirm the complete address, postal code format and delivery restrictions with the relevant official postal operator or carrier before dispatch.
Editorial and service accountability
This postal-code reference is maintained by the 56ok.com logistics-content team for international shipping preparation. It is reviewed against publicly available postal-operator information; it is not an official postal authority and does not replace carrier or customs instructions.
This reference is maintained as postal and carrier information changes. Need a correction? Contact our team.
Privacy, terms and disclaimer
Your search terms are handled under our Privacy Policy. Review our Terms of Service and disclaimer before relying on any logistics or delivery information.
📮United States Postal FAQ and delivery guidance
📮 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.
🔍 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.
⚠️ 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.
🔄 Do ZIP codes ever change?
Yes, USPS may update ZIP codes due to regional adjustments. Always confirm your ZIP code after an address change.
📦 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).
