Mesnil-Roc'h

Mesnil-Roc'h (Breton: Sant-Pêr-Plewenn) is a commune in the Ille-et-Vilaine department in Brittany in northwestern France. It was established on 1 January 2019 by merger of the former communes of Saint-Pierre-de-Plesguen (the seat), Lanhélin and Tressé.^[2]

Mesnil-Roc'h
Commune
A general view of Saint-Pierre-de-Plesguen
Location of Mesnil-Roc'h
Mesnil-Roc'h Show map of France Mesnil-Roc'h Show map of Brittany
Coordinates: 48°26′52″N 1°54′43″W
Country	France
Region	Brittany
Department	Ille-et-Vilaine
Arrondissement	Saint-Malo
Canton	Combourg
Intercommunality	Bretagne Romantique
Area 1	41.16 km2 (15.89 sq mi)
Population  (2022)[1]	4,457
• Density	110/km2 (280/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	35308 /35720
Elevation	34–99 m (112–325 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Population

Historical population

Year	Pop.	±% p.a.
1968	3,009	—
1975	2,903	−0.51%
1982	2,960	+0.28%
1990	2,960	+0.00%
1999	2,848	−0.43%
2007	3,630	+3.08%
2012	4,047	+2.20%
2017	4,301	+1.22%
Source: INSEE[3]

See also

• Communes of the Ille-et-Vilaine department