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| Castans | |
|---|---|
| Coordinates: 43°24′29″N2°29′02″E / 43.4081°N 2.4839°E | |
| Country | France | 
| Region | Occitania | 
| Department | Aude | 
| Arrondissement | Carcassonne | 
| Canton | Le Haut-Minervois | 
| Intercommunality | Carcassonne Agglo | 
| Government | |
| • Mayor (2020–2026) | Yolande Piton [1] | 
| Area 1 | 17.01 km2 (6.57 sq mi) | 
| Population  (2022) [2]  | 127 | 
| • Density | 7.5/km2 (19/sq mi) | 
| Time zone | UTC+01:00 (CET) | 
| • Summer (DST) | UTC+02:00 (CEST) | 
| INSEE/Postal code |  11075 /11160 | 
| Elevation | 380–1,187 m (1,247–3,894 ft) (avg. 650 m or 2,130 ft) | 
| 1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries. | |
Castans (Occitan : Castanhs) is a commune in the Aude department in southern France.
| Year | Pop. | ±% | 
|---|---|---|
| 1962 | 102 | — | 
| 1968 | 118 | +15.7% | 
| 1975 | 107 | −9.3% | 
| 1982 | 124 | +15.9% | 
| 1990 | 111 | −10.5% | 
| 1999 | 112 | +0.9% | 
| 2008 | 120 | +7.1% |