A: National census authority data. B: Demographia land area estimate based upon map or satellite photograph analysis. C: Demographia population "build up" from third, fourth or fifth order jurisdictions (NUTS-3, NUTS-4, NUTS-5 or equivalent). D: Population estimate based upon United Nations agglomeration estimate. E: Demographia population estimate from national census authority agglomeration data. F: Other Demographia population estimate.

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  • A: National census authority data. B: Demographia land area estimate based upon map or satellite photograph analysis. C: Demographia population "build up" from third, fourth or fifth order jurisdictions (NUTS-3, NUTS-4, NUTS-5 or equivalent). D: Population estimate based upon United Nations agglomeration estimate. E: Demographia population estimate from national census authority agglomeration data. F: Other Demographia population estimate. G: Estimate based upon projected growth rate from last census. H: Combination of adjacent national census authority agglomerations. The most reliable population estimates are "A" and "H. " Population estimates "C" are generally reliable. Population estimates "D" and "E" are less reliable. Population estimates coded "F" and "G" are the least reliable. The estimates are quite different from the list of World's largest urban agglomerations produced by the United Nations that reports inconsistently on urban geographic, despite its reference to agglomerations. This is evident, for example, in Manila, Kuala Lumpur, Jakarta, Seoul and Moscow, where the UN data are for political jurisdictions, rather than urban areas. In other cases, metropolitan area data are shown, such as in Brazil. Urban areas are confined to a single metropolitan area or labor market area. In some cases, urban areas have virtually grown together, yet are still considered separate urban areas. Urban areas are confined to a single nation, unless there is freedom of movement (including labor) between the adjacent nations. Currently, this condition is met only between some continental nations of the European Union.
  • 按市区人口排列世界城市列表的数据主要是根据2009年考克斯出版的《人口统计》。市区面积和人口基本不是依照行政区，而是依照人口密集的城市群确定的，澳大利亚是根据每平方千米400人的密集区，美国是根据每平方英里1000人的密集区确定的。城市面积是根据卫星照片和地图城市化情况确定的，有的也根据小面积的精确人口推算，美国、澳大利亚、加拿大、法国和英国有人口统计数据，印度的统计数据则没有应用，因为这个数据是根据行政区域统计的，也包括广大的农村人口，其数据来源按字母标示如下： A: 根据国家权威统计数据； B: 根据地图或卫星照片估计的面积数据； C: 根据联合国NUTS-3、-4、-5统计的人口数据； D: 根据联合国城市化估计的城市群人口数据； E: 根据国家权威统计的人口数据估计的城市群人口数据； F: 其他方法估计的人口数据； G: 根据最后统计数据和增长速度估计的人口数据； H: 根据国家权威统计几个区域的数据结合。 其中“A”和“H”的数据最为可靠，“C”数据一般也可靠，“D”和“E”的数据则不太可靠，“F”和“G”的数据误差较大。 这个表和联合国排列的城市群有一定的差别，因为联合国的数据有的是行政区域的数据，而有的则是市区的，不太统一。 本列表对已经连在一起的城市群仍然分开排列，如对美国的波士顿-华盛顿城市带和日本的太平洋工业带，不同国家紧邻的城市也分开排列，除非是劳动力可以越过国境自由流动，这种现象只有在欧盟中才存在（如法国的里尔和比利时的科尔特赖克）。
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  • A: National census authority data. B: Demographia land area estimate based upon map or satellite photograph analysis. C: Demographia population "build up" from third, fourth or fifth order jurisdictions (NUTS-3, NUTS-4, NUTS-5 or equivalent). D: Population estimate based upon United Nations agglomeration estimate. E: Demographia population estimate from national census authority agglomeration data. F: Other Demographia population estimate.
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  • List of urban areas by population
  • 按市区人口排列世界城市列表
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