Chaumes-en-Retz
Chaumes-en-Retz 
     | |
|---|---|
Commune  | |
Town hall  | |
Location of Chaumes-en-Retz  | |
| Coordinates: 47°06′58″N 1°56′31″W / 47.116°N 1.942°W | |
| Country | France | 
| Region | Pays de la Loire | 
| Department | Loire-Atlantique | 
| Arrondissement | Saint-Nazaire | 
| Canton | Pornic and Machecoul-Saint-Même | 
| Intercommunality | Pornic Agglo Pays de Retz | 
| Government | |
| • Mayor (2020–2026) | Jacky Drouet | 
Area 1  | 76.55 km2 (29.56 sq mi) | 
| Population  (2022)  | 7,288 | 
| • Density | 95/km2 (250/sq mi) | 
| Time zone | UTC+01:00 (CET) | 
| • Summer (DST) | UTC+02:00 (CEST) | 
| INSEE/Postal code | 44005 /44320, 44680  | 
| Elevation | 1–61 m (3.3–200.1 ft) | 
| 1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries. | |
Chaumes-en-Retz (French pronunciation: [ʃom ɑ̃ ʁɛ] ⓘ, literally Chaumes in Retz; Breton: Kalaved-Raez) is a commune in the department of Loire-Atlantique in western France. The municipality was established on 1 January 2016 by merger of the former communes of Arthon-en-Retz and Chéméré.