|Canton||La Région Limouxine|
|• Mayor (2008–2014)||Hervé Garcia|
|Area1||11.02 km2 (4.25 sq mi)|
|• Density||18/km2 (47/sq mi)|
|Time zone||CET (UTC+1)|
|• Summer (DST)||CEST (UTC+2)|
|INSEE/Postal code||11078 /11300|
|Elevation||244–572 m (801–1,877 ft)|
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.
Its inhabitants are known as Castelrengois.
Castelreng is a village, also the said population probably took into account holiday makers who do not technically reside in the village since they do not pay taxes and therefore do not contribute to anything.
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