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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Idaho ZIP Codes typically fall within the range of . First Digit (8): Represents the Western United States.
Blocked Drains Eastleigh