La Matanza Partido

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La Matanza
Partido de La Matanza
location of La Matanza in Gran Buenos Aires
location of La Matanza in Gran Buenos Aires
Country Argentina
Established 1784
Capital San Justo
 • Mayor Fernando Espinoza, PJ
 • Total 325 km2 (125 sq mi)
 • Total 1,775,272[1]
Demonym matanzero
Postal Code B1625
Area Code 011 or 02202
Coordinates 34°43′S 58°38′W / 34.717°S 58.633°W / -34.717; -58.633

La Matanza ('The Slaughter' in Spanish) is a partido (district) located in the Greater Buenos Aires in Buenos Aires Province in Argentina.

The provincial subdivision has a population of 1,775,272 inhabitants (at the 2010 Census)[1] in an area of 325.71 km2 (125.76 sq mi), and its capital city is San Justo, which is located around 16 km (10 mi) from the autonomous city of Buenos Aires.


The name comes from a confrontation that Diego, the brother of conquistador Pedro de Mendoza, had with the Querandí tribe in 1536, where he and 22 soldiers that were with him died. In his name, this area and the river are named La Matanza (The Slaughter), sometimes using the plural form.

The Partido was named Pago until 1730, then Partido de Matanza y Pozos (Partido of Slaughter and Wells): it was then a largely underpopulated rural area, and was led by a two-mayor system. In 1784, the Partido was divided in two, Las Matanzas and Cañada de Morón (Morón Gully). In 1856, the capital city San Justo was founded.


According the Argentine census bureau, the INDEC, the population was 1,121,298 in 1991, 1,255,288 in 2001 and 1,772,130 in 2010. It is the most populated Partido in the Province of Buenos Aires and the biggest municipality in the country.



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