Rügen / Rugia Map of the island Rügen / Rugia Geography Location Baltic Sea Area 926.4 km2 (357.7 sq mi) [1] Length 51.4 km (31.94 mi) Width 42.8 km (26.59 mi) [1] Coastline 574 km (356.7 mi) Highest elevation 161 m (528 ft) [1] Highest point Piekberg[1] Administration Germany State Mecklenburg-Vorpommern District Vorpommern-Rügen Demographics Demonym Rugians Population 77,000[1] (2006) Pop. density 79 /km2 (205 /sq mi)