The British Virgin Islands consist of the main islands of Tortola, Virgin Gorda, Anegada, and Jost Van Dyke, along with over 50 other smaller islands and cays. About 15 of the islands are inhabited. The capital, Road Town, is on Tortola, the largest island, which is about 20 km (12 mi) long and 5 km (3 mi) wide. The islands had a population of about 28,000 at the 2010 Census, of whom approximately 23,500 lived on Tortola. For the islands, the latest United Nations estimate (2016) is 30,661.