Sønderborg is a municipality in south Denmark, in the county of South Jutland on the peninsula of Jutland. The municipality covers an area of 54 km², and has a total population of 30,011. The Kingdom of Denmark is geographically the smallest Nordic country and is part of the European Union. ... Sønderjyllands Amt (English: South Jutland County) is a county in southern Denmark, on the peninsula of Jutland. ... Jutland Peninsula Jutland (Danish: Jylland, German: Jütland) is a peninsula in northern Europe that forms the continental part of Denmark and a northern part of Germany, dividing the North Sea from the Baltic Sea. ... Square kilometre (US spelling: Square kilometer), symbol km², is an SI unit of surface area. ...

External links

• Official website (http://www.sonderborg.dk)Sonderborg Castle (Sønderborg Slot) is located in the centre of Sønderborg.