Le Plessis-Grimoult (French pronunciation: [lə plɛsi ɡʁimu] ) is a former commune in the Calvados department in the Normandy region in northwestern France. On 1 January 2017, it was merged into the new commune Les Monts d'Aunay.

Historical population

Year Pop. ±% 1800 820 —     1851 757 −7.7% 1881 660 −12.8% 1911 515 −22.0% 1931 402 −21.9% 1946 396 −1.5% 1954 327 −17.4% 1962 370 +13.1%

Year Pop. ±% 1968 358 −3.2% 1975 331 −7.5% 1982 300 −9.4% 1990 292 −2.7% 1999 310 +6.2% 2008 352 +13.5% 2022 313 −11.1%

• Communes of the Calvados department