Locales Config
When using the {exp:cartthrob:countries}, {exp:cartthrob:country_select}, {exp:cartthrob:states}, {exp:cartthrob:state_select}, or {gateway_fields} tags, the states and countries are auto-generated from a list found in system/user/addons/cartthrob/config/locales.php
. If you wish to modify the states and/or countries that are output, you can use your own custom list by renaming system/user/addons/cartthrob/config/_my_locales.php
to my_locales.php
(remove the leading underscore) and editing that file.