Kuala Lumpur, or KL, is the federal capital and most populous city of Malaysia. Kuala Lumpur is the fastest growing metropolitan area of the country. Ranked as an alpha world city, it's the economic, financial and cultural city of the country and one of three Malaysian Federal Territories. The city also has a high Human Development Index. In 2016, Kuala Lumpur had an estimated population of 1.76 million.