Idaho Postal Codes
Idaho, United States · 320 ZIP codes · 44 counties
Regions
Search by Map
Interactive map of zip codes in Idaho. Just click on the location you desire for a postal code/address for your mails destination.
How to find a ZIP Code in Idaho
Not having the right zip code for your postal mail would mean your letters will not reach their destination. Click the location on the map to find your needed postal code or choose the county in the links above for a list of the zip codes available in Idaho.
Idaho Postal Code Information
About Idaho Postal Codes
Idaho uses the US 5-digit ZIP code system to help deliver mail efficiently. Our database covers 320 ZIP codes across 44 counties in Idaho. The largest counties by ZIP-code volume include Ada, Adams, Bannock. Use our lookup tool to find the correct postal code for any address in Idaho.
For example, Eagle in Ada County is recorded with the ZIP code 83616. Every county in the list above links to its places and ZIP codes.
How to Use
1. Choose a county from the Regions list above
2. Click the location on the map for a postal code
3. Or use the search box at the top of the page
4. View the exact delivery area on the map
Frequently Asked Questions about Idaho ZIP Codes
How do I find a ZIP code in Idaho?
Choose a county from the Regions list above to see all its places and ZIP codes, or click any location on the interactive map to get the postal code and full address for that point.
How many ZIP codes are there in Idaho?
Our database contains 320 ZIP codes across 44 counties in Idaho, sourced from GeoNames.org and OpenStreetMap.
What is the ZIP code format in Idaho?
ZIP codes in Idaho follow the standard US 5-digit numeric format (or 9 digits with ZIP+4). The first digit represents a group of states.
