This article is about densely populated regions. For the core of such regions, see Metropolis. For other uses, see Metropolitan (disambiguation).

"Metro area" redirects here. For the dance music duo, see Metro Area.

Population tables of world cities
World's largest cities World's largest cities proper World's densest population World's largest conurbations World's largest urban areas World megacities World megalopolises
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A metropolitan area is a region consisting of a densely populated urban core and its less-populated surrounding territories, sharing industry, infrastructure, and housing.^[1] A metro area usually comprises multiple jurisdictions and municipalities: neighborhoods, townships, boroughs, cities, towns, exurbs, suburbs, counties, districts, states, and even nations like the eurodistricts. As social, economic and political institutions have changed, metropolitan areas have become key economic and political regions.^[2]

Metropolitan areas include satellite cities, towns and intervening rural areas that are socioeconomically tied to the urban core, typically measured by commuting patterns.^[3] Most metropolitan areas are anchored by one major city such as Paris metropolitan area (Paris) and New York metropolitan area (New York City). In some cases metropolitan areas have multiple centers of close to equal importance, such as Dallas–Fort Worth metropolitan area (Dallas and Fort Worth) and Islamabad–Rawalpindi metropolitan area (Islamabad and Rawalpindi).

In the United States, the concept of the metropolitan statistical area has gained prominence. Metropolitan areas may themselves be part of larger megalopolises. For urban centres outside metropolitan areas, that generate a similar attraction at smaller scale for their region, the concept of the regiopolis and respectively regiopolitan area or regio was introduced by German professors in 2006.^[4] In the United States, the term micropolitan statistical area is used.