Hi,
You can set a zone on manual shipping configuration.
A zone could be a country, a state or a collection of countries/states.
After that, you can set rules on postal codes (minimum value, maximum value).
If you are not logged, the default location would be load from your default tax zone.
You have to use an account and to modify his billing/shipping address.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.