Longaulnay

Longaulnay
Hirwerneg (Breton)
The town hall of Longaulnay
Location of Longaulnay
Longaulnay
Longaulnay
Coordinates: 48°18′39″N 1°56′18″W / 48.3108°N 1.9383°W / 48.3108; -1.9383
CountryFrance
RegionBrittany
DepartmentIlle-et-Vilaine
ArrondissementSaint-Malo
CantonCombourg
IntercommunalityBretagne Romantique
Government
  Mayor (20202026) David Buisset
Area
1
7.52 km2 (2.90 sq mi)
Population
 (2022)
598
  Density80/km2 (210/sq mi)
Time zoneUTC+01:00 (CET)
  Summer (DST)UTC+02:00 (CEST)
INSEE/Postal code
35156 /35190
Elevation65–191 m (213–627 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Longaulnay (Breton: Hirwerneg) is a commune in the Ille-et-Vilaine department of Brittany in northwestern France.