Country Argentina
Established 1536, 1580
Government
- Type Autonomous city
- Chief of Government Mauricio Macri
- Senators María Eugenia Estenssoro, Samuel Cabanchik, Daniel Filmus
Area
- City 203 km2 (78.5 sq mi)
- Land 203 km2 (78.5 sq mi)
- Metro 4,758 km2 (1,837.1 sq mi)
Population (2009 est.)
- City 3,050,728
- Density 15,005/km2 (38,862.7/sq mi)
- Metro 13,356,715
- Metro density 2,807.2/km2 (7,270.54/sq mi)
Demonym porteño (m), porteña (f)
Time zone ART (UTC-3)
Area code(s) 011
HDI (2010) 0.953 - very high
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