OpenERP keeps a list of all the states for a country. In earlier versions this list used to be only restricted to United States but this can and should be expanded to have the states of all the countries.
To start with Ireland counties are not there in the database and in order to create them we needed a list of counties/states. If you need it for your OpenERP installation; you can download from here.
After downloading, go to Sales > Address Book > Localisation > Fed. States and click Import and Import the CSV file from above. You just need to click validate and upload as all the fields will be automatically mapped.
That’s it. Your database should now have the list of all the states of Ireland.
Oh you are looking for list of Indian states for OpenERP too? Here they are as well.