Municipalities of Milan

The organization was established in 1997, implemented in 1999 and reformed in 2016; prior to that the city was divided into 20 administrative zones.

On 19 January 1999 the city executive chaired by the Mayor Gabriele Albertini decided to merge some of the zones, reducing their number to 9 and giving them a new numeration.

[3] Some of the actual functions of borough councils are: After the 2016 administrative reform, the Borough Councils are also responsible for most local services, such as schools, social services, waste collection, roads, parks, libraries and local commerce.

[4] Moreover, the Presidents are no longer elected by the Councils members but directly by the voters; for the current legislature (2021–26) the Presidents are: With the exception of Municipio 1, which corresponds to the historical city centre (defined as the part of the city that used to be surrounded by the old Spanish walls, now mostly demolished), the boroughs are organized in a sunburst pattern, and numbered from the north-east zone clockwise (see picture above).

Current boroughs are described in the table below, along with their names, area and population (as of 1 January 2022), as well as a list of the main districts comprising each zone.