Saint-Mars-du-Désert, Loire-Atlantique

Saint-Mars-du-Désert
The Julienne David Road, with the church of Saint-Médard in the background
Location of Saint-Mars-du-Désert
Saint-Mars-du-Désert
Saint-Mars-du-Désert
Coordinates: 47°22′02″N 1°24′16″W / 47.3672°N 1.4044°W / 47.3672; -1.4044
CountryFrance
RegionPays de la Loire
DepartmentLoire-Atlantique
ArrondissementChâteaubriant-Ancenis
CantonNort-sur-Erdre
IntercommunalityErdre et Gesvres
Government
  Mayor (20202026) Barbara Nourry
Area
1
30.46 km2 (11.76 sq mi)
Population
 (2022)
5,435
  Density180/km2 (460/sq mi)
Time zoneUTC+01:00 (CET)
  Summer (DST)UTC+02:00 (CEST)
INSEE/Postal code
44179 /44850
Elevation3–77 m (9.8–252.6 ft)
(avg. 67 m or 220 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Saint-Mars-du-Désert (French pronunciation: [sɛ̃ maʁ dy dezɛʁ] ; Breton: Sant-Marzh-an-Dezerzh) is a commune in the Loire-Atlantique department in western France.