World's largest cities

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This is a list of the world's largest cities in population, ordered by several ranking methods. Determining the world's largest cities depends on which definitions of "city" and "size" are used, and how those definitions are applied. The "size" of a city can refer to its land area, but it is more typically the population. How one defines the land area of a city, however, is key to determining its population.

Common methods for defining the boundaries of a city[edit]

Urban Area
A city can be defined as a conditionally contiguous urban area, without regard to territorial or other boundaries inside an urban area. UNICEF [1] defines urban area as follows:
"The definition of ‘urban’ varies from country to country, and, with periodic reclassification, can also vary within one country over time, making direct comparisons difficult. An urban area can be defined by one or more of the following: administrative criteria or political boundaries (e.g., area within the jurisdiction of a municipality or town committee), a threshold population size (where the minimum for an urban settlement is typically in the region of 2,000 people, although this varies globally between 200 and 50,000), population density, economic function (e.g., where a significant majority of the population is not primarily engaged in agriculture, or where there is surplus employment) or the presence of urban characteristics (e.g., paved streets, electric lighting, sewerage)."
Metropolitan Area
A city can be defined by the habits of its demographic population, as by metropolitan area, labour market area, or similar in a metropolitan area. UNICEF [1] defines metropolitan area as follows:
"A formal local government area comprising the urban area as a whole and its primary commuter areas, typically formed around a city with a large concentration of people (i.e., a population of at least 100,000). In addition to the city proper, a metropolitan area includes both the surrounding territory with urban levels of residential density and some additional lower-density areas that are adjacent to and linked to the city (e.g., through frequent transport, road linkages or commuting facilities)."
City Proper (Administrative)
A city can be defined by its administrative boundaries (city proper). UNICEF [1] defines city proper as follows:
"The population living within the administrative boundaries of a city, e.g., Washington, D.C."

Cities making the top 20 in a list[edit]

The numbers after each cell give the ranking of that city in that list. This table is designed to be a way to compare the different lists and discover which cities are well-recognised by all of them, without favouring one list over the others. Rankings in bold are the rankings of the cities in the top 20 of that source's list. The first four columns are the four different lists used by Wikipedia; after them, external sources are given.

CityImageCountryUrban AreaUrban Area (UN)Metropolitan AreaCity ProperWorldAtlasCity Population
BangkokBangkok - City skyline at mid day.JPG Thailand1936584421
BeijingView of Beijing.jpg China1181991214
BogotáSkyline downtown Bogota.jpg Colombia361317263237
Buenos AiresBuenos-aires-skyline.jpg Argentina211217592020
CairoFlickr - Daveness 98 - Cityscape panorama of Cairo.jpg Egypt161816251117
DelhiDelsky.jpg India428446
DhakaDhaka Skyline.jpg Bangladesh209241917
GuangzhouGuangzhou dusk panorama.jpg China12289152
IstanbulIstanbul2010.jpg Turkey231922123
JakartaJakarta Skyline Part 2.jpg Indonesia22461223
KarachiKarachi sky line.jpg Pakistan71020378
KolkataKolkata Skyline.jpg India181014441819
LagosLagos Island.jpg Nigeria2520152425
LondonLondon Skyline.jpg United Kingdom293018193424
Los AngelesLos Angeles Skyline at Night.jpg United States171313471713
ManilaMakatiskyline.jpg Philippines6151169
Mexico CityPolanco Skyline Mexico City DF.jpg Mexico103310107
MoscowMoscow-City skyline.jpg Russia15161571616
MumbaiMumbai Skyline at Night.jpg India137521412
New York CityNew York City Skyline-02.jpg United States84413810
OsakaOsaka city view 02.jpg Japan141791315
Rio de JaneiroLeblon and Ipanema.jpg Brazil2614272226
São PauloCidade de São Paulo.jpg Brazil9576911
SeoulSeoul Cityscape From the Sky Park (6907573433).jpg South Korea3222835
Shanghai2012 Pudong.jpg China5610153
TianjinTianjin Skyline 2009 Sep 11 by Nangua 1.jpg China323283028
TokyoTokyo odaiba.jpg Japan1111411

See also[edit]

  1. ^ a b c "SOWC-2012-DEFINITIONS". UNICEF. Retrieved January 29, 2014.