To get you started ... see the add on Plugin for Table Rate Clone:
http://www.zen-cart.com/downloads.php?do=file&id=720

This has been updated for Zen Cart v1.5 and will work in v1.3.9h as well ...

If you need additional clones, you can use these as a pattern for making them ...

Once made, add your rates and Zone Definitions to each one so that they can run at the same time based on the Zone Definitions that you have created ...