Fonsomme (French pronunciation: [fɔ̃sɔm]; before 2011: Fonsommes)[3] is a commune in the Aisne department in Hauts-de-France in northern France.

Fonsomme
Source of the Somme
Source of the Somme
Coat of arms of Fonsomme
Map
Location of Fonsomme
Fonsomme is located in France
Fonsomme
Fonsomme
Fonsomme is located in Hauts-de-France
Fonsomme
Fonsomme
Coordinates: 49°54′11″N 3°24′01″E / 49.9031°N 3.4003°E / 49.9031; 3.4003
CountryFrance
RegionHauts-de-France
DepartmentAisne
ArrondissementSaint-Quentin
CantonSaint-Quentin-2
IntercommunalityCA Saint-Quentinois
Government
  Mayor (20202026) Colette Noël[1]
Area
1
9.6 km2 (3.7 sq mi)
Population
 (2023)[2]
518
  Density54/km2 (140/sq mi)
Time zoneUTC+01:00 (CET)
  Summer (DST)UTC+02:00 (CEST)
INSEE/Postal code
02319 /02110
Elevation82–131 m (269–430 ft)
(avg. 85 m or 279 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Geography

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The source of the river Somme lies in the commune.

Population

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Historical population
YearPop.±% p.a.
1968 564    
1975 538−0.67%
1982 494−1.21%
1990 545+1.24%
1999 554+0.18%
2007 507−1.10%
2012 530+0.89%
2017 469−2.42%
2023 518+1.67%
Source: INSEE[4]

See also

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References

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  1. "Répertoire national des élus: les maires". data.gouv.fr, Plateforme ouverte des données publiques françaises (in French). 9 August 2021.
  2. "Populations de référence 2023" (in French). National Institute of Statistics and Economic Studies. 18 December 2025.
  3. Décret n° 2011-311 22 March 2011 (in French)
  4. Population municipale entre 1968 et 2023, INSEE