Greater Buenos Aires ( es|Gran Buenos Aires, GBA), also known as the Buenos Aires Metropolitan Area ( es|Área Metropolitana de Buenos Aires, AMBA), refers to the urban agglomeration comprising the autonomous city of Buenos Aires and the adjacent 24 ''partidos'' (districts) in the Province of Buenos Aires. Thus, it does not constitute a single administrative unit. The conurbation spreads south, west and north of Buenos Aires city. To the east, the River Plate serves as a natural boundary. Urban sprawl, especially between 1945 and 1980, created a vast conurbation of 9,910,282 inhabitants in the 24 conurbated ''partidos'', as of 2010, and a total of 12,801,365 including the City of Buenos Aires, a third of the total population of Argentina and generating more than half of the country's GDP.


The term ''Gran Buenos Aires'' ("Greater Buenos Aires") was first officially used in 1948, when Governor of Buenos Aires Province Domingo Mercante signed a bill delineating as such an area covering 14 municipalities surrounding the City of Buenos Aires. The term is also related to other expressions that are not necessarily well-defined: the "Buenos Aires' conurbation" (''Conurbano Bonaerense''), the "Greater Buenos Aires Agglomeration" (''Aglomerado Gran Buenos Aires''), and the "Metropolitan Area of Buenos Aires" (''Área Metropolitana Buenos Aires'', AMBA).


The National Institute of Statistics and Censuses (INDEC) has defined Greater Buenos Aires. There are three main groups within the Buenos Aires conurbation. The first two groups (24 ''partidos'') comprise the traditional conurbation, or the "conurbation proper", while the third group of six ''partidos'' is in the process of becoming fully integrated with the rest. ;Fourteen fully urbanized ''partidos'' * Avellaneda * General San Martín * Hurlingham * Ituzaingó * José C. Paz * Lanús * Lomas de Zamora * Malvinas Argentinas * Morón * Quilmes * San Isidro * San Miguel * Tres de Febrero * Vicente López ;Ten ''partidos'' partially urbanized *Almirante Brown * Berazategui * Esteban Echeverría * Ezeiza * Florencio Varela * La Matanza * Merlo * Moreno * San Fernando * Tigre ;Six ''partidos'' not yet conurbated As urbanization continues and the conurbation grows, six additional partially urbanized ''partidos'' now are fully connected with the conurbation: * Escobar * General Rodríguez * Marcos Paz * Pilar * Presidente Perón * San Vicente

List of cities in Greater Buenos Aires



File:Centro_de_Berazategui.JPG|Berazategui File:Ciudad Evita.JPG|Ciudad Evita (La Matanza Partido) File:Peatonal Florencio Varela 1.jpg|Florencio Varela File:Viacivitanovamarche.JPG|General San Martín File:Iglesia Inmaculada concepción....jpg|Monte Grande (Esteban Echeverría Partido) File:Provincia de Buenos Aires - Vicente López - Avenida Maipú.jpg|Olivos (Vicente López Partido) File:Quilmes001bis.jpg|Quilmes File:Parque junto al Museo de Arte Tigre.jpg|Tigre File:Ruta_Panamericana_Buenos Aires_Florida.jpg|Pan-American Expressway, north of Buenos Aires


Further reading

* Buzai, G.D. and Marcos, M. (2012). "The social map of Greater Buenos Aires as empirical evidence of urban models". ''Journal of Latin American Geography''. Volume 11 Number 1, pp. 67–78, DOI 10.1353/lag.2012.0012 * Keeling, D. (1996). ''Buenos Aires: Global Dreams, Local Crisis''. Chichester: John Wiley & Sons. {{Authority control Category:Geography of Buenos Aires Province Buenos Aires