|Area||6.3 ha (16 acres)|
|Length||0.5 km (0.31 mi)|
|Width||0.2 km (0.12 mi)|
|Highest elevation||5.9 m (19.4 ft)|
The uninhabited little island of Balmer Werder lies in the Baltic Sea, in the Balmer See, the southeastern part of the Achterwasser lagoon, between Usedom and the mainland off the village of Balm. Balm belongs to the municipality of Benz in the county of Vorpommern-Greifswald in the German state of Mecklenburg-Vorpommern.
The island is 6.3 hectares in area, 500 metres long from north to south and 200 metres wide at its widest point. Its maximum height above sea level (NN) is 5.9 metres.