Als (German: Alsen) is a Danish islan in the Baltic Sea. It lies east of the Jutland peninsula of Denmark at the town of Sønderborg, and north of the German coast at Schleswig. The island covers an area of 321 km² (124 sq. miles), and has a total population of ca. 60,000. It encompasses the municipality Sønderborg as per January 1, 2007.