Sumbawa is located east of Lombok, and is larger than Bali and Lombok together. Area 15.448 sq. km, population about 800.000, of which the majority are occupied with agriculture and fishing. The people here are, like on Lombok, mainly Muslims. Christian missionaries did not even bother to come here. Some old animistic traditions are still alive. The soil is fertile, and the most important products are rice, maize, beans, timber, cattle and minerals.
There is now a large mining industry on Sumbawa. Traditionally Sumbawa has been divided between two main groups of people, each with their own language; Sumbawanese in the west and Bimanese in the east. The western population are related to the Sasak people on Lombok, while in the east there is a clear relation to Flores.