|Notre-Dame du Port-Blanc|
|Elevation||0–92 m (0–302 ft)|
|Land area1||19.84 km2 (7.66 sq mi)|
|- Density||132 /km2 (340 /sq mi)|
|INSEE/Postal code||22166/ 22710|
|1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km² (0.386 sq mi or 247 acres) and river estuaries.|
|2 Population without double counting: residents of multiple communes (e.g., students and military personnel) only counted once.|
Inhabitants of Penvénan are called penvénannais in French.
Port-Blanc and islands 
The town itself is inland, but the commune is best known for the coastal hamlet of Port-Blanc, a popular tourist location from the late 19th century, and former home of Anatole Le Braz and Théodore Botrel. Charles Lindbergh, Aldous Huxley and Alexis Carrel also lived there for periods. Lindbergh lived on the island of Île Illiec, which he owned. Port-Blanc is also the location of the annual Pardon of Saint Gildas, a significant religious festival, and of the "sunken" chapel of Notre-Dame. A group of islands are off the coast, notably the Isle of Saint Gildas, containing a chapel from the 9th century.
Breton language 
The municipality launched a linguistic plan through Ya d'ar brezhoneg on January 16, 2007.
In 2008, 19.93% of primary school children attended bilingual schools.
See also 
- (French) Ofis ar Brezhoneg: Enseignement bilingue
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