There are many different formats for addressing packages and mail that is to be sent internationally; not all countries follow the United States' "Name, Address, City, State, Zip Code" model. The link below will direct you to a site that shows how exactly to address any parcel you wish to send internationally. Simply scroll down the page until you find the country you wish to send to, then locate the addressing format located therein.
If you have any questions regarding this process, please contact the Post Office.
International Mailing Format Page:
International Zip Codes: