Saint-Germain-en-Laye
| Saint-Germain-en-Laye | |
|---|---|
| Subprefecture and commune | |
| Location of Saint-Germain-en-Laye | |
| Coordinates: 48°53′56″N 2°05′38″E / 48.8989°N 2.0938°E | |
| Country | France | 
| Region | Île-de-France | 
| Department | Yvelines | 
| Arrondissement | Saint-Germain-en-Laye | 
| Canton | Saint-Germain-en-Laye | 
| Intercommunality | CA Saint Germain Boucles Seine | 
| Government | |
| • Mayor (2020–2026) | Arnaud Pericard | 
| Area 1 | 51.94 km2 (20.05 sq mi) | 
| Population  (2022) | 45,286 | 
| • Density | 870/km2 (2,300/sq mi) | 
| Demonym(s) | Saint-Germanois Saint-Germinois | 
| Time zone | UTC+01:00 (CET) | 
| • Summer (DST) | UTC+02:00 (CEST) | 
| INSEE/Postal code | 78551 /78100 & 78112 | 
| Elevation | 22–107 m (72–351 ft) (avg. 78 m or 256 ft) | 
| 1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries. | |
Saint-Germain-en-Laye (French: [sɛ̃ ʒɛʁmɛ̃ ɑ̃ lɛ] ⓘ) is a commune in the Yvelines department in the Île-de-France in north-central France. It is located in the western suburbs of Paris, 19.1 km (11.9 mi) from the centre of Paris.
Inhabitants are called Saint-Germanois or Saint-Germinois. With its elegant tree-lined streets it is one of the more affluent suburbs of Paris, combining both high-end leisure spots and exclusive residential neighborhoods (see the Golden Triangle of the Yvelines).
Saint-Germain-en-Laye is a sub-prefecture of the department. Because it includes the National Forest of Saint-Germain-en-Laye, it covers approximately 48 km2 (19 sq mi), making it the largest commune in the Yvelines. It occupies a large loop of the Seine. Saint-Germain-en-Laye lies at one of the western termini of Line A of the RER.