US United States Major Regions Postal Code Details
๐๏ธ Custer ยท South Dakota
57730
Bakerville
57730
Bluebell
57722
Buffalo Gap
57730
Crazy Horse
57730
Custer
57738
Fairburn
57738
Fleming
57744
Folsom
57730
Game Lodge
57730
Harney Peak
57744
Hayward
57744
Hermosa
57773
Pringle
57744
Red Shirt
57730
Sanator
57730
Sylvan Lake
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).