US United States Major Regions Postal Code Details
๐๏ธ Marshall ยท Kansas
66403
Axtell
66406
Beattie
66411
Blue Rapids
66412
Bremen
66427
Frankfort
66508
Herkimer
66438
Home
66427
Lillis
66508
Marysville
66518
Oketo
66541
Summerfield
66544
Vermillion
66544
Vliets
66548
Waterville
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).