Kuala Lumpur (/ˈkwɑːləˈlʊmpʊər/ or /-pər/; Malaysian pronunciation: [ˈkwalə ˈlumpʊr]),[7] is the federal capital and most populous city in Malaysia.[8] The city covers an area of 243 km2 (94 sq mi) and has an estimated population of 1.6 million as of 2010.[8] Greater Kuala Lumpur, also known as the Klang Valley, is an urban agglomeration of 6.9 million as of 2010.[4][5] It is among the fastest growing metropolitan regions in the country, in terms of population and economy.