US United States Major Regions Postal Code Details
๐๏ธ Amador ยท California
95601
Amador City
95640
Camanche Lake
95640
Carbondale
95642
Clinton
95699
Drytown
95629
Fiddletown
95640
Ione
95642
Jackson
95644
Kit Carson
95654
Martell
95675
Mount Aukum
95665
Pine Grove
95644
Pioneer
95669
Plymouth
95675
River Pines
95666
Silver Lake
95640
Sunnybrook
95699
Sutter Creek
95685
Sutter Hill
95689
Volcano
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).