How divided is Denmark politically

Kataja is an uninhabited island in the Baltic Sea which covers an overall area of 0.71 sq km. The island is actually two seperate islands which have become joined by post glacial rebound.The island is now therefore politically divided into two areas;

80% of the island is occupied by the Norrbotten region of Sweden, on what was once the island of Kataja.

20% of the island is occupied by the Lapland region of Finland on what was once the island of Inikara.

KOILUOTO

Koiluoto is an uninhabited island in the Gulf of Finland which covers an overall area of 0.03 sq km. The island is politically divided into two areas;

75% of the island is occupied by the Kymenlaakso region of Finland.

25% of the island is occupied by the Leningrad Oblast region of Russia.

MARKET

Market Island is an uninhabited island in the Baltic Sea which covers an overall area of 0.03 sq km. The island is politically divided equally between the Hammarland Municipality of Finland, which is the western most land point of Finland, and Uppsala County in Sweden.

NEW GUINEA