Iowa Postal Codes
Iowa, United States · 1,055 ZIP codes · 99 counties
Regions
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Interactive map of zip codes in Iowa. Just click on the location you desire for a postal code/address for your mails destination.
How to find a ZIP Code in Iowa
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 Iowa.
Iowa Postal Code Information
About Iowa Postal Codes
Iowa uses the US 5-digit ZIP code system to help deliver mail efficiently. Our database covers 1,055 ZIP codes across 99 counties in Iowa. The largest counties by ZIP-code volume include Adair, Adams, Allamakee. Use our lookup tool to find the correct postal code for any address in Iowa.
For example, Adair in Adair County is recorded with the ZIP code 50002. 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 Iowa ZIP Codes
How do I find a ZIP code in Iowa?
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 Iowa?
Our database contains 1,055 ZIP codes across 99 counties in Iowa, sourced from GeoNames.org and OpenStreetMap.
What is the ZIP code format in Iowa?
ZIP codes in Iowa follow the standard US 5-digit numeric format (or 9 digits with ZIP+4). The first digit represents a group of states.
