Saint-Marc-le-Blanc
Saint-Marc-le-Blanc 
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The town hall of Saint-Marc-le-Blanc  | |
Location of Saint-Marc-le-Blanc  | |
| Coordinates: 48°21′55″N 1°24′30″W / 48.3653°N 1.4083°W | |
| Country | France | 
| Region | Brittany | 
| Department | Ille-et-Vilaine | 
| Arrondissement | Fougères-Vitré | 
| Canton | Val-Couesnon | 
| Intercommunality | Couesnon Marches de Bretagne | 
| Government | |
| • Mayor (2020–2026) | Olivier Gaigne | 
Area 1  | 22.76 km2 (8.79 sq mi) | 
| Population  (2022)  | 1,567 | 
| • Density | 69/km2 (180/sq mi) | 
| Time zone | UTC+01:00 (CET) | 
| • Summer (DST) | UTC+02:00 (CEST) | 
| INSEE/Postal code | 35292 /35460  | 
| Elevation | 60–121 m (197–397 ft) | 
| 1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries. | |
Saint-Marc-le-Blanc (French pronunciation: [sɛ̃ maʁ lə blɑ̃]; Gallo: Saent-Mard-le-Blaunc, Breton: Sant-Mezar-Elvinieg) is a commune in the Ille-et-Vilaine department in Brittany in northwestern France. On 1 January 2019, the former commune Baillé was merged into Saint-Marc-le-Blanc.