Subdivisions of Buenos Aires

The city of Buenos Aires is formally divided in 48 barrios (neighbourhoods), grouped into 15 comunas (communes), which are defined as "units of decentralized political and administrative management governed by designated residents".

The city proper (excluding the outskirts that form Greater Buenos Aires), had 2,891,082 inhabitants as of 2010.[1]


English name Spanish name Time of first occurrence Quantity at time of first occurrence Relation to other types
Parishes Parroquias 1622 1
Police sections Secciones policiales/comisarĂ­as 1778
Neighbourhoods Barrios 1794
Census divisions Divisiones censales 1869.
Electoral sections Secciones electorales 1877 Aligned with the boundaries of the communes. "las secciones electorales se ajustaron a las comunas"[2]
School districts Distritos escolares 1884.
CGP CGP 1996. 16
Communes Comunas 2005. 15 Grouping several neighbourhoods.
Sanitary regions RĂ©giones sanitarias [3] 2008. 4 Grouping several communes.

Sanitary regions

The borders of the sanitary regions are aligned with the borders of the communes.

  • Region 1: C1, C3, C4
  • Region 2: C7, C8, C9
  • Region 3: C5, C6, C10, C11, C15
  • Region 4: C2, C12, C13, C14


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