This long and narrow stripe conformation is the result of the history of the city, born from the merger on 1 January 1870 of two up to that time independent municipalities: Pioltello and Limito.

In 1745 the architect Carlo Giuseppe Merlo started work on the facade of the parish church of Sant'Andrea Apostolo, which was completed in 1753.

The first section on the left presents the red cross on a white background, the symbol of Milan, to represent Pioltello's proximity to the capital.

The four green bands on a golden field refer to the coat of arms of the illustrious Milanese family of Trivulzio which, starting from 1499, had been the owner of the fief of Melzo, of which Pioltello was part of at the time.

Finally, the figure of the two crossed swords would allude to the Battle of Cassano d'Adda which took place in the territory of Pioltello in 1259, when the Milanese troops clashed with those commanded by Ezzelino III da Romano.

City Title – Presidential Decree of 19 November 1999 The history and urban planning of the city have fostered the sense of belonging to the neighborhoods, which territorially coincide in substance with the parishes of San Giorgio (Limito), Sant'Andrea (Pioltello Vecchia), Maria Regina (Pioltello Nuova) and Beata Vergine Assunta (Seggiano).

Public administrations have tackled the phenomenon with initiatives such as the Intercultural Consultation, one of the few experiments in the area of continuous dialogue between foreign communities and Italian citizens.

Another deeply felt religious festival is the procession of Lu Signuri di li Fasci which takes place every Good Friday in Seggiano, where this tradition is it was brought by the numerous original community of Pietraperzia ( Enna ).

Two large companies have their headquarters in Pioltello: Esselunga (Via Giambologna 1) and the Italian branch of 3M In the handicraft sector, wrought iron working for public buildings is very widespread and renowned .