Hi,
You should re-save your "country" address custom field to be sure that the default value stored in the database is right "United states".
Then you should check that you're not editing an address where the country is not "USA", otherwise the state dropdown won't be able to load the states for a country which is now unpublished, at this moment you should save once the address in order to change the country and then you will see the state dropdown.
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.