Castandet | |
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 Location of Castandet | |
  Castandet Location within France  Castandet Location within Nouvelle-Aquitaine | |
| Coordinates: 43°48′29″N 0°20′28″W / 43.8081°N 0.3411°W | |
| Country | France |
| Region | Nouvelle-Aquitaine |
| Department | Landes |
| Arrondissement | Mont-de-Marsan |
| Canton | Adour Armagnac |
| Intercommunality | Pays Grenadois |
| Government | |
| • Mayor (2020–2026) | Jean-Michel Duclave |
Area 1 | 16.66 km2 (6.43 sq mi) |
| Elevation | 110 m (360 ft) |
| Highest elevation | 126 m (413 ft) |
| Lowest elevation | 67 m (220 ft) |
| Population (2023) | 425 |
| • Density | 25.5/km2 (66.1/sq mi) |
| Time zone | UTC+01:00 (CET) |
| • Summer (DST) | UTC+02:00 (CEST) |
| INSEE/Postal code | 40070 /40270 |
| 1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries. | |
Castandet (French pronunciation: [kastɑ̃dɛ]) is a commune in the Landes department in Nouvelle-Aquitaine in southwestern France. For centuries, it was an important village of potters, whose products — tableware or utensils, household items and tools for agricultural or craft work — were sold in much of Gascony.
