How big is sumatra?

Sumatra is the sixth largest island in the world. It has a total area of about 475,000 square kilometers (183,000 square miles). Sumatra is located in the western part of Indonesia and is the largest island in the country. The island is about 1,100 kilometers (680 miles) long and about 300 kilometers (190 miles) wide at its widest point. Sumatra has a population of about 50 million people, and the largest city on the island is Medan, with a population of about 2.5 million people.