List of metropolitan areas in Asia by population Asia (i/ˈeɪʒə/ or /ˈeɪʃə/) is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area (or 30% of its land area) and with approximately 4.3 billion people, it hosts 60% of the world's current human population. During the 20th century Asia's population nearly quadrupled.[3]
