Idaho ZIP Codes
Looking for the zip code of Idaho USA? Browse every ZIP code in Idaho by city below — our growing collection of Idaho city pages including Boise. Pick a city to see its complete ZIP code list, or use our free tools to look up any address.
Cities in Idaho with ZIP Code Pages
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About Idaho ZIP Codes
Idaho ZIP codes cover every corner of the state — from major metro areas to small towns. Each city page lists every ZIP code in that city, sorted numerically, with county information and answers to common questions. If you are unsure which ZIP code belongs to your street address, our ZIP Code by Address tool finds it instantly.
Frequently Asked Questions
How do I find the ZIP code for a city in Idaho?
Pick the city from the list above to see every ZIP code in that city. For a street address, use our ZIP Code by Address tool.
How many ZIP codes does Idaho have?
Idaho has hundreds of ZIP codes across its cities and towns. The cities listed above show 28 ZIP codes in total — and the list keeps growing.
What is the ZIP+4 code for my Idaho address?
Use our free ZIP+4 Lookup tool — enter your Idaho street address to get the full 9-digit code.
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