Borders of Denmark

The exclusive economic zone (EEZ, 200 nmi (370 km; 230 mi) zone) of the Kingdom of Denmark (Greenland, Denmark (proper), Faroe Islands) borders those of Germany, the Netherlands, Poland, the United Kingdom, Sweden, Norway, Iceland and Canada.

Until 1658, the historic provinces of Skåne, Blekinge and Bohuslän (and until 1645 also Halland) belonged to Denmark, so that the Denmark–Sweden border ran across what is now southern Sweden.

Under the Treaty of Kiel, Denmark retained possession of Greenland, Iceland and the Faroe Islands.

Reunification between Denmark and South Jutland (North Schleswig) was signed into Danish law effective 9 July 1920.

However, custom checks remained in force between Denmark and other Nordic countries until the Schengen acquis of 2001.

The territorial waters (12 nautical miles) of Denmark form a border with Sweden along the Øresund, extending to 115 km.

The exclusive economic zone (200 nmi (370 km; 230 mi) zone) of Mainland Denmark, bordering (clockwise) those of Norway, Sweden, Poland, Germany, the Netherlands, and the United Kingdom
EEZ of Denmark (including overseas territories)
1920 poll results of the Schleswig Plebiscites . The 1920 border between Denmark and Germany was virtually identical to the border between referendum zones 1 and 2.
Scandinavia in 1219