Location Map of Southeast Asia showing the 11 countries of the region. Southeast Asia lies almost entirely within the Northern Hemisphere and partly extends into the Southern Hemisphere. The sections extending to the south of the equator are East Timor and Indonesia ’s southern part. Southeast Asia, vast region of Asia situated east of the Indian subcontinent and south of China. It consists of two dissimilar portions: a continental projection (commonly called mainland Southeast Asia) and a string of archipelagoes to the south and east of the mainland (insular Southeast Asia). Asia consists of 48 countries, three of which are transcontinental. Given its large size, Asia has been subdivided based on many factors, including cultural, political, and physiographical. Physiographically, there are five major regions of Asia: Central Asia, East Asia, South Asia, Southeast Asia, and Western Asia. Learn about the 11 independent countries in Southeastern Asia, their capitals, languages, currencies and more. See a map and a table of the region's population and area rankings.
