Pulau Ujong (Malay: literally 'island at the end'), also known as Singapore Island or Mainland Singapore, is the main constituent island of Singapore. It is part of the Malay Archipelago and is located at the tip of Peninsular Malaysia. The island forms the majority of the country in terms of area and population as citizens are unable to reside in smaller islands of Singapore. With a population of 5,469,700 and an area of 710 square kilometres, Pulau Ujong is the 21st most populous island in the world and the 31st most densely populated island in the world.