Grande-Synthe

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Grande-Synthe Groot-Sinten
Commune
The town hall in Grande-Synthe
Coat of arms
Location of Grande-Synthe
Grande-Synthe Show map of France Grande-Synthe Show map of Hauts-de-France
Coordinates: 51°00′50″N 2°18′10″E / 51.0139°N 2.3028°E / 51.0139; 2.3028
Country	France
Region	Hauts-de-France
Department	Nord
Arrondissement	Dunkerque
Canton	Grande-Synthe
Intercommunality	CU de Dunkerque
Government
• Mayor (2020–2026)	Martial Beyaert[1]
Area 1	21.44 km2 (8.28 sq mi)
Population  (2021)[2]	20,331
• Density	950/km2 (2,500/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	59271 /59760
Elevation	2 m (6.6 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Grande-Synthe (French pronunciation: [ɡʁɑ̃d sɛ̃t]; West Flemish: Groot-Sinten) is a commune in the Nord department in the Nord-Pas de Calais region in northern France.^[3]

It is the third-largest suburb of the city of Dunkerque (Dunkirk) and lies adjacent to it on the west.