The village of Lac-Cayamant is located at the north end of Lake Cayamant, west of Gracefield.

It was renamed to the Municipality of Cayamant at the end of 1988, due to many problems created by having the identical name to that of the city of Dorion (which merged with neighbouring Vaudreuil in 1994).

[4] The village has a primary school, a church, and some convenience stores, restaurants and some basic commerce.

Between 1890 and 1900, a few settlers moved to the shores of Cayamant Lake,[4] becoming home to a flood of French Canadians who were heading to the west of the province in search of farmland.

[4] Private dwellings occupied by usual residents (2021): 460 (out of 1,036 total)[3] Languages:[8] List of former mayors: