Castillon-de-Castets (French pronunciation: [kastijɔ̃ də kastɛts]; Gascon: Castilhon de Castèths) is a former commune in the Gironde department in Nouvelle-Aquitaine in southwestern France. On 1 January 2017, it was merged into the new commune Castets et Castillon.^[2]

Key Information

Castillon-de-Castets
Part of Castets et Castillon
Town hall
Location of Castillon-de-Castets
Castillon-de-Castets Location within France Show map of France Castillon-de-Castets Location within Nouvelle-Aquitaine Show map of Nouvelle-Aquitaine
Coordinates: 44°33′02″N 0°06′51″W / 44.5506°N 0.1142°W / 44.5506; -0.1142
Country	France
Region	Nouvelle-Aquitaine
Department	Gironde
Arrondissement	Langon
Canton	Le Réolais et Les Bastides
Commune	Castets et Castillon
Area 1	4.47 km2 (1.73 sq mi)
Population  (2023)[1]	290
• Density	65/km2 (170/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
Postal code	33210
Elevation	12–56 m (39–184 ft) (avg. 50 m or 160 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.
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1. ^ "Populations de référence 2023" [Reference populations 2023] (PDF) (in French). INSEE. December 2025.
2. ^ Arrêté préfectoral 1 August 2016 (in French)

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