Piennes-Onvillers

Piennes-Onvillers
The church in Piennes-Onvillers
Location of Piennes-Onvillers
Piennes-Onvillers
Piennes-Onvillers
Coordinates: 49°37′50″N 2°38′33″E / 49.6306°N 2.6425°E / 49.6306; 2.6425
CountryFrance
RegionHauts-de-France
DepartmentSomme
ArrondissementMontdidier
CantonRoye
IntercommunalityCC Grand Roye
Government
 • Mayor (2020–2026) Brigitte Devismes
Area
1
12.29 km2 (4.75 sq mi)
Population
 (2023)
391
 • Density31.8/km2 (82.4/sq mi)
Time zoneUTC+01:00 (CET)
 • Summer (DST)UTC+02:00 (CEST)
INSEE/Postal code
80623 /80500
Elevation82–119 m (269–390 ft)
(avg. 104 m or 341 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Piennes-Onvillers is a commune in the Somme department in Hauts-de-France in northern France. It was created in 1973 by the merger of two former communes: Piennes and Onvillers.