|• Mayor||Cornelius Daniels|
|• Total||1.59 km2 (0.61 sq mi)|
|Elevation||8 m (26 ft)|
|• Density||29/km2 (75/sq mi)|
|Time zone||CET/CEST (UTC+1/+2)|
A hill called Sylvert is located West of Witsum. There is a saying in the area that translates to: "What Mount Everest is for the world, the Sylvert is to our beloved island."
Witsum was first recorded in 1509. As a part of Westerland Föhr, it belonged to the Royal Enclaves of Denmark and thus was a direct part of the Danish crown while Osterland Föhr belonged to the duchy of Schleswig. Only when Denmark lost Schleswig to Prussia in the Second Schleswig War, Witsum became a part of Schleswig-Holstein.
Witsum and the neighbouring village of Utersum were the only municipalities in the second zone of the Schleswig Plebiscites to vote for Denmark in 1920; yet because they were not directly situated at the border, the two of them remained with Germany.
The State Road that connects Wyk auf Föhr with Utersum runs through Witsum. Moreover a regular bus line serves the village.
Tourism is the major source of income for Witsum.