If you need to add a custom
State / Province / Region to a Country in Magento, you’ll need to modify the database manually as there currently isn’t a means to do this from within the Magento admin. Fortunately it’s pretty simple – there are
2 tables involved:
directory_country_region and directory_country_region_name.
Adding a record to
directory_country_region for a specified country_id will make that new entry show up in the State/Province drop box on the address forms. It will also make that a required field, so you need to make sure you add all the possible options.
You then need to add a corresponding record to
directory_country_region_name, using the region_id generated when you inserted into directory_country_region. This entry will make the new region show up when a whole address is displayed on the screen or email, e.g. in an order summary.
Example: Add Tamil Nadu to India
So let’s say that like me, you live in India and want to add 2 regions: Tamil Nadu and Kerala. The country id for India is IN, the region code is a unique identifier so I’m going with Tamil Nadu and at the moment I’m only interested in the en_US locale.
First I will insert Tamil Nadu into directory_country_region as follows:
INSERT INTO `directory_country_region`
(`region_id`,`country_id`,`code`,`default_name`)
VALUES (NULL,'IN','TAMIL','Tamil Nadu');
Note the NULL entry for the region_id field which will auto_increment. I need to find out this new region_id for my next insert so I can either browse the table manually, or this query will do the trick:
SELECT * FROM `directory_country_region`
WHERE `country_id`='IN' AND`code`='TAMIL' AND `default_name`='Tamil Nadu';
In my case, the new region_id is 485, so with that I’ll now insert into directory_country_region_name as follows:
INSERT INTO `directory_country_region_name`
(`locale`,`region_id`,`name`)
VALUES ('en_US','485','Tamil Nadu');
Now I just repeat those steps for Kerala and I’m all set.
