US United States Major Regions Postal Code Details
๐๏ธ Cecil ยท Maryland
21904
Bainbridge
21913
Cecilton
21914
Charlestown
21915
Chesapeake City
21916
Childs
21917
Colora
21918
Conowingo
21919
Earleville
21920
Elk Mills
21922
Elkton
21930
Georgetown
21901
North East
21902
Perry Point
21903
Perryville
21904
Port Deposit
21911
Rising Sun
21912
Warwick
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).