[2] Its population is 481,685 (2021), and its area is 371.3 km2 (143.4 sq mi).

[3] The communes of the arrondissement of Sarcelles, and their INSEE codes, are:[2] The arrondissement of Montmorency was created in 1962 as part of the department Seine-et-Oise.

[5] In March 2000 Sarcelles replaced Montmorency as subprefecture.

[7] As a result of the reorganisation of the cantons of France which came into effect in 2015, the borders of the cantons are no longer related to the borders of the arrondissements.

The cantons of the arrondissement of Sarcelles were, as of January 2015:[8]