Monchy-Lagache
Commune
Coat of arms
Location of Monchy-Lagache
Monchy-Lagache Show map of France Monchy-Lagache Show map of Hauts-de-France
Coordinates: 49°51′09″N 3°02′43″E / 49.8525°N 3.0453°E / 49.8525; 3.0453
Country	France
Region	Hauts-de-France
Department	Somme
Arrondissement	Péronne
Canton	Ham
Intercommunality	Est de la Somme
Government
• Mayor (2020–2026)	Jacques Pinchon
Area 1	15.44 km2 (5.96 sq mi)
Population  (Jan. 2019)[1]	601
• Density	39/km2 (100/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	80555 /80200
Elevation	57–95 m (187–312 ft) (avg. 74 m or 243 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Monchy-Lagache is a commune. It is in Hauts-de-France in the Somme department in north France.

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