Buenos Aires is a canton in the Puntarenas province of Costa Rica. The head city is in Buenos Aires district. History A law of 26 June 1914, created a canton by the name of "De Osa". This new entity encompassed much of the national territory of southernmost Costa Rica. Buenos Aires was created on 29 July 1940 by decree 185, segregated from "De Osa". The remaining territorial extension is now Osa canton. Geography Buenos Aires has an area of km² and a mean elevation of metres. The canton includes a portion of the Cordillera de Talamanca along its northeastern border. The valleys of the General River, Coto Brus River and Térraba River form the core of the canton, and coastal mountain ranges set the limits on the southeast side. Districts The canton of Buenos Aires is subdivided into the following districts: Buenos Aires Volcán Potrero Grande Boruca Pilas Colinas Chánguena Briolley Brunka Demographics For the 2011 census, Buenos Aires had a population of inhabitants. Transportation Road transportation The canton is covered by the following road routes: References Cantons of Puntarenas Province Populated places in Puntarenas Province