Lagny-le-Sec (French pronunciation: [laɲi sɛk]) is a commune in the Oise department in northern France.

Lagny-le-Sec
The town hall in Lagny-le-Sec
The town hall in Lagny-le-Sec
Map
Location of Lagny-le-Sec
Lagny-le-Sec is located in France
Lagny-le-Sec
Lagny-le-Sec
Lagny-le-Sec is located in Hauts-de-France
Lagny-le-Sec
Lagny-le-Sec
Coordinates: 49°05′15″N 2°44′42″E / 49.0875°N 2.745°E / 49.0875; 2.745
CountryFrance
RegionHauts-de-France
DepartmentOise
ArrondissementSenlis
CantonNanteuil-le-Haudouin
IntercommunalityPays de Valois
Government
  Mayor (20202026) Didier Doucet[1]
Area
1
11.23 km2 (4.34 sq mi)
Population
 (2023)[2]
2,043
  Density181.9/km2 (471.2/sq mi)
Time zoneUTC+01:00 (CET)
  Summer (DST)UTC+02:00 (CEST)
INSEE/Postal code
60341 /60330
Elevation94–116 m (308–381 ft)
(avg. 107 m or 351 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Population

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Historical population
YearPop.±% p.a.
1968 623    
1975 1,167+9.38%
1982 1,619+4.79%
1990 1,892+1.97%
1999 1,806−0.52%
2007 1,816+0.07%
2012 2,026+2.21%
2017 2,062+0.35%
2023 2,043−0.15%
Source: INSEE[3]

See also

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References

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  1. "Répertoire national des élus: les maires" (in French). data.gouv.fr, Plateforme ouverte des données publiques françaises. 13 September 2022.
  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