Lagny-sur-Marne | |
|---|---|
 | |
| Country | France |
| Region | Île-de-France |
| Department | Seine-et-Marne |
| No. of communes | 14 |
| Seat | Lagny-sur-Marne |
| Area | 58.90 km2 (22.74 sq mi) |
| Population (2021)[1] | 71,172 |
| • Density | 1,208/km2 (3,130/sq mi) |
| INSEE code | 77 09 |
The canton of Lagny-sur-Marne is a French administrative division, located in the arrondissement of Torcy, in the Seine-et-Marne département (Île-de-France région).
- ^ "Téléchargement du fichier d'ensemble des populations légales en 2021" (in French). The National Institute of Statistics and Economic Studies. 28 December 2023.