Saint-Denis
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Saint-Denis is a city in the Île-de-France region of France that serves as a subprefecture, meaning it's an administrative center for local government. It's notable as an important urban area in the Paris metropolitan region with significant historical and administrative importance.
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Saint-Denis (/ˌsæ̃dəˈniː/, French: [sɛ̃d(ə)ni] ) is a commune in the northern suburbs of Paris, France. It is located 9.4 kilometres (5+7⁄8 miles) from the centre of Paris. Saint-Denis is the most populated suburb of Paris, with a population of 149,077 as of 2023 (geography as of 2025). It is a subprefecture (French: sous-préfecture) of the department of Seine-Saint-Denis, being the seat of the arrondissement of Saint-Denis. It is also part of the Métropole du Grand Paris.
The commune borders the 18th arrondissement of Paris to the south, roughly along the stretch between Porte des Poissonniers and Porte de la Chapelle, continuing to the Porte d’Aubervilliers.