Article · Wikipedia archive · Last revised Jun 19, 2026

Saclay

Saclay is a commune in the southwestern suburbs of Paris, France. It is located 18.7 km (11.6 mi) from the centre of Paris. It is best known for the large scientific facility CEA Saclay, mostly dealing with nuclear and particle physics.

Last revised
Jun 19, 2026
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Saclay
Coat of arms of Saclay
Location (in red) within Paris inner and outer suburbs
Location (in red) within Paris inner and outer suburbs
Map
Location of Saclay
Saclay
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Coordinates: 48°43′52″N 2°10′21″E / 48.731°N 2.1724°E / 48.731; 2.1724
CountryFrance
RegionÎle-de-France
DepartmentEssonne
ArrondissementPalaiseau
CantonGif-sur-Yvette
IntercommunalityCA Paris-Saclay
Government
 • Mayor (2020–2026) Michel Senot1
Area
1
13.65 km2 (5.27 sq mi)
Population
 (2023)2
4,437
 • Density325.1/km2 (841.9/sq mi)
Time zoneUTC+01:00 (CET)
 • Summer (DST)UTC+02:00 (CEST)
INSEE/Postal code
91534 /91400
Elevation108–161 m (354–528 ft)
(avg. 147 m or 482 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Saclay (French: [saklɛ] ) is a commune in the southwestern suburbs of Paris, France. It is located 18.7 km (11.6 mi) from the centre of Paris. It is best known for the large scientific facility CEA Saclay, mostly dealing with nuclear and particle physics.

Population

Historical population
YearPop.±% p.a.
1968 1,991—    
1975 2,037+0.33%
1982 1,865−1.25%
1990 2,894+5.65%
1999 2,883−0.04%
2007 3,013+0.55%
2012 3,637+3.84%
2017 4,029+2.07%
2023 4,437+1.62%
Source: INSEE3

Inhabitants of Saclay are known as Saclaysiens in French.

Transport

Saclay is served by no station of the Paris Métro, or suburban rail network (RER). The closest station to Saclay is Le Guichet station on Paris RER line B. This station is located in the neighboring commune of Orsay, 3.2 kilometres (2 miles) to the south of the town center of Saclay. The commune will have one station, Christ de Saclay, on the under-construction Paris Metro Line 18.

See also

See also

References

References

  1. "Répertoire national des élus: les maires". data.gouv.fr, Plateforme ouverte des données publiques françaises (in French). 2 December 2020.
  2. "Populations de référence 2023" (in French). National Institute of Statistics and Economic Studies. 18 December 2025.
  3. Population municipale entre 1968 et 2023, INSEE
External links