Southeast Asia
State Area ( km ) Population ( 2020 ) Density ( /km ) GDP ( nominal ) , USD ( 2020 ) GDP ( PPP ) per capita , Int $ ( 2019 ) HDI ( 2018 report ) Capital
Brunei 5,765 437,479 74 16,553,000,000 $ 86,480 0.845 Bandar Seri Begawan
Cambodia 181,035 16,718,965 90 26,834,000,000 $ 4,322 0.581 Phnom Penh
East Timor 14,874 1,267,974 85 3,096,000,000 $ 6,077 0.626 Dili
Indonesia 1,904,569 267,670,543 141 1,273,809,000,000 $ 13,969 0.707 Jakarta
Laos 236,800 7,061,507 30 18,516,000,000 $ 8,571 0.604 Vientiane
Malaysia 329,847 31,528,033 96 472,690,000,000 $ 32,502 0.804 Kuala Lumpur *
Myanmar 676,578 53,708,320 79 102,453,000,000 $ 7,387 0.578 Nay Pyi Taw
Philippines 300,000 106,651,394 356 487,989,000,000 $ 9,538 0.712 Manila
Singapore 719.2 5,757,499 8,005 347,073,000,000 $ 102,027 0.935 Singapore
Thailand 513,120 69,428,453 135 457,212,000,000 $ 20,268 0.765 Bangkok
Vietnam 331,210 95,545,962 288 275,762,000,000 $ 8,060 0.693 Hanoi
Definitions -- Political divisions
Southeast Asia or Southeastern Asia is a subregion of Asia, consisting of the regions that are geographically south of China, east of the Indian subcontinent and north-west of Australia. Southeast Asia is bordered to the north by East Asia, to the west by South Asia and the Bay of Bengal, to the east by Oceania and the Pacific Ocean, and to the south by Australia and the Indian Ocean. The region is the only part of Asia that lies partly within the Southern Hemisphere, although the majority of it is in the Northern Hemisphere. In contemporary definition, Southeast Asia consists of two geographic regions: