Bawean (Indonesian: Pulau Bawean) is an island of Indonesia located approximately 150 km north of Surabaya in the Java Sea, off the coast of Java. It is administered by Gresik Regency of East Java province. It is approximately 15 km in diameter and is circumnavigated by a single narrow road. Bawean is dominated by an extinct volcano at its center that rises to 655 m above sea level. Its population as at the 2010 Census is about 70,000 people, but more than 26,000 of them (that is about 70% of the male population) were temporarily living outside, working in other parts of Indonesia, Singapore and Malaysia). As a result, females constituted about 77% of the actual population of the island, which is thus often referred to as the Island of Women (Indonesian: Pulau Putri).
The fauna of Bawean Island is generally quite similar to that of Java. Initially, most of the island was covered by rainforest, but as a result of human activity its area gradually declined and by the end of the 20th century was not more than 10% of the island. About 15% is occupied by the artificially planted common teak (Tectona grandis).
The island is located in the Java Sea about 150 km north of the larger island of Madura. It has a nearly round shape with the size varying between 11 and 18 km and the average value of 15 km.The shores are winding and contain many small bays; there are many small sandy islands (noko), rocks and coral reefs off the coast with the size up to 600 meters.The largest inhabited satellite islands are Selayar, Selayar Noko, Noko Gili, Gili Timur and Nusa.