The city of Buenos Aires is formally divided in 48 barrios (neighborhoods), grouped into 15 comunas (communes), which are defined as "units of decentralized political and administrative management governed by designated residents".[1]
The city proper (excluding the suburbs and exurbs that form Greater Buenos Aires), had 2,891,082 inhabitants as of 2010.[2]
| English name | Spanish name | Time of first occurrence | Quantity at time of first occurrence | Relation to other types |
|---|---|---|---|---|
| Parishes | Parroquias | 1622 [1] | 1 | |
| Police sections | Secciones policiales/comisarías | 1778 [2] | ||
| Neighborhoods | Barrios | 1794 [3] | ||
| Census divisions | Divisiones censales | 1869. [4] | ||
| Electoral sections | Secciones electorales | 1877 [5] | Aligned with the boundaries of the communes. "las secciones electorales se ajustaron a las comunas"[3] | |
| School districts | Distritos escolares | 1884. [6] | ||
| CGP | CGP | 1996. [7] | 16 | |
| Communes | Comunas | 2005. [8] | 15 | Grouping of several neighborhoods. |
| Sanitary regions | Régiones sanitarias [4] | 2008. [9] | 4 | Grouping several communes. |
The borders of the sanitary regions are aligned with the borders of the communes.
