Map of Poissy, France

Poissy is a city in Île-de-France, France, with a population of about 36,431. It lies at 48.9290°N, 2.0495°E. Poissy is about 23 km (15 mi) west of Paris, the capital. The nearest city on our map is Saint-Germain-en-Laye, 5 km to the southeast.

Poissy at a glance

Where is Poissy?

• Located in the Northern and Eastern hemispheres.
• Daylight ranges from about 8 h 14 min on the shortest day to 16 h 12 min on the longest day (around 21 December and 21 June).

Cities near Poissy

• Saint-Germain-en-Laye — 5 km southeast
• Conflans-Sainte-Honorine — 9 km northeast
• Sartrouville — 11 km east
• Rueil-Malmaison — 12 km southeast
• Cergy — 12 km north
• Nanterre — 12 km east
• Cergy-Pontoise — 12 km north
• Plaisir — 14 km southwest
• Argenteuil — 15 km east
• Suresnes — 15 km southeast

Largest cities in Île-de-France

• Paris — 2,138,551
• Marne La Vallée — 318,325
• Cergy-Pontoise — 183,430
• Saint-Quentin-en-Yvelines — 146,598
• Montreuil — 111,240
• Boulogne-Billancourt — 108,782
• Argenteuil — 101,475
• Saint-Denis — 96,128
• Asnières-sur-Seine — 86,742
• Nanterre — 86,719

Largest cities in France

• Paris — 2,138,551
• Marseille — 877,215
• Lyon — 520,774
• Toulouse — 511,684
• Nice — 342,669
• Nantes — 325,070
• Marne La Vallée — 318,325
• Strasbourg — 274,845
• Bordeaux — 265,328
• Montpellier — 248,252

Map of France and all its cities →

Sources: place names, coordinates, populations and time zones from GeoNames (CC BY 4.0, data retrieved October 2026). Population figures are the latest values recorded in GeoNames; depending on the country they refer to the city proper, a municipality or a wider urban area, so they can differ from census or metro-area figures. Map © OpenStreetMap contributors.