Saint-Germain-en-Laye

Saint-Germain-en-Laye
Subprefecture and commune
Château de Saint-Germain-en-Laye
Coat of arms
Location of Saint-Germain-en-Laye
Saint-Germain-en-Laye Show map of France Saint-Germain-en-Laye Show map of Île-de-France (region)
Coordinates: 48°53′56″N 2°05′38″E / 48.8989°N 2.0938°E / 48.8989; 2.0938
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[1]
Area 1	51.94 km2 (20.05 sq mi)
Population  (2021)[2]	44,380
• Density	850/km2 (2,200/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.