Departement de Seine Saint Denis (Seine-Saint-Denis), Île-de-France

County Snapshot

Seine-Saint-Denis at a glance

Seine-Saint-Denis currently has 34 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.

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Mapped populated places

34

These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.

Île-de-France counties

8

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Largest city

Montreuil

Population 109,897

Top linked places

Montreuil 109,897 Saint-Denis 96,128 Aubervilliers 86,375 Aulnay-sous-Bois 85,740

State	Île-de-France (France)
Latitude & Longitude	48.9142,2.4760
Time Zone	Europe/Paris
Local time	04:06:06 (23rd April 2026)

Geography

Seine-Saint-Denis is located at 48°54'51"N 2°28'34"E (48.9142100, 2.4760400).