Use this for a more precise 9-digit code (e.g., 83702-1234). Quick Reference for Major Idaho Cities Primary ZIP Code Boise Pocatello Idaho Falls Twin Falls Coeur d'Alene Best Practices for Addressing Mail Use All Caps: The USPS prefers "ZIP Code" in uppercase.
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The ZIP Code should always be the very last part of the address line. Use this for a more precise 9-digit code (e
Pinpoint a specific local post office or delivery area. How to Find a ZIP Code in Idaho Id.zip