Found this on the internet, might be an option for those who are finding it cumbersome to add support for this:
So, for anyone else who wants to UNPUBLISH your games in the EEA countries,
here are the lists of them ( i found hard to get the full complete list on google search, so i want to share this here for you all guys Play store publishers)
The EEA Agreement brings together the 28 EU Member States and the three EEA EFTA states (Iceland, Liechtenstein and Norway)
28 EU Member states are:
Austria, Belgium, Bulgaria, Croatia, Republic of Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden and the UK.
And + the three EEA EFTA states (Iceland, Liechtenstein and Norway)
then, it should be all = 31.