Pair US zip codes with the correct USDA hardiness zone
Data comes in a single table which can be easily imported and linked by zip code to your existing geocode database. Great for building your own hardiness zone look-up or dynamic map application.
- Available in Excel & CSV format
- 48,283 48,743 unique US Zip Codes with matching USDA Hardiness Zone pairs
- Includes current zip codes for all 50 states
- Does not include zip codes to military zones outside the US, commonwealths, or outlying islands.
- Last Updated January 2011
Accuracy of Data
The USDA originally compiled this data in 1990. Since this time, the US Postal service has added several hundred new zip codes. For the newer zip codes, I have extrapolated the zone from the nearest 1990 zip code. The data contained in the 'distance' column is the extrapolation error (in miles). This should allow you to judge for yourself whether or not a particular zip / zone pair satisfies the requirements of your application.
Purchase & Delivery
Select the format you would like below. Once your PayPal payment is complete, the dataset will be automatically emailed to the address on file with your PayPal account.
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