Lac-Casault () is an unorganized territory in the Bas-Saint-Laurent region of Quebec, Canada.
The small eponymous Lake Casault is located near the village of St-Alexandre-des-Lacs and was named in honour of Louis-Napoléon Casault (1823–1908).
Demographics Population trend:Statistics Canada: 1996, 2001, 2006, 2011, 2016, 2021census Population in 1991: 3 Population in 1996: 0 Population in 2001: 0 Population in 2006: 20 Population in 2011: 5 Population in 2016: 0 Population in 2021: 30
Private dwellings occupied by usual residents: 24 (total dwellings: 142)
See also List of unorganized territories in Quebec
References