The Asian country with the highest population density among sovereign states is Singapore. This city-state concentrates more than six million residents on a territory of roughly 735 square kilometres, producing a density of about 8,000 people per square kilometre.
Singapore’s density is closely tied to its geography and urban planning. It consists of one main island and more than 60 smaller islands, with limited land available for housing, industry and transport. The government has expanded usable territory through land reclamation and built upward with high-rise public housing, especially through the Housing and Development Board.
Singapore became a major British trading port after 1819 and joined Malaysia in 1963 before becoming an independent republic in 1965. Its strategic position at the southern tip of the Malay Peninsula helped turn it into a global port, financial centre and aviation hub, attracting a large resident and working population.
The wording matters: Monaco is denser globally but is not in Asia, while Macau is not a sovereign state. Bangladesh, South Korea and India are populous Asian countries, but their national populations are spread across much larger areas.