| | "State","Membership","Parliament","Membership status","Represented since","Members" |
| | "Denmark","Full","The Folketing","Sovereign state","1952","16" |
| | "Iceland","Full","Alþingi","Sovereign state","1952","7" |
| | "Norway","Full","The Storting","Sovereign state","1952","20" |
| | "Sweden","Full","The Riksdag","Sovereign state","1952","20" |
| | "Finland","Full","Eduskunta","Sovereign state","1955","18" |
| | "Greenland","Associate","Landsting","Self-governing region of the Danish Realm","1984","2" |
| | "Faroe Islands","Associate","Løgting","Self-governing region of the Danish Realm","1970","2" |
| | "Åland Islands","Associate","Lagting","Self-governing region of Finland","1970","2" |
| | "Estonia","Observers","","","","" |
| | "Latvia","Observers","","","","" |
| | "Lithuania","Observers","","","","" |
| |
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