LIST OF CITIES BY SIZE

(Redirected from Largest city)
The "size" of a city can refer to either its physical extent or its population. Furthermore, there are three main ways of delineating the boundaries of a city:

★ A 'morphological definition' based on the urban area, which is usually defined as the continuous built-up area with the maximum allowable gap between structures of typically 200 m. The delineation is usually done using population density criteria, or by satellite/aerial maps, without regard to political boundaries. For statistical convenience, such areas are sometimes adjusted to appropriate administrative limits, sometimes including rural areas within the adjusted boundaries (urban agglomeration).
Main articles: List of urban areas by population, List of urban agglomerations by population


★ A 'functional definition' based on the concept of a metropolitan area or labor market area. This definition is usually based on commuting from home to work. Commuter flow thresholds into the core urban area are established by the national census authority to determine which areas are included or not in the metropolitan area. This definition, however, often encompasses large periurban rural areas that are not usually considered as "cities".
Main articles: List of metropolitan areas by population


★ An 'administrative definition', typically based on a municipality (''city proper'') or equivalent entity, or sometimes a group of municipalities under a regional government. While statistical data for administrative divisions are easy to collect, they often do not reflect the true extent of the city.

★ Main articles: List of cities by population, List of cities by surface area