Saint-Augustin, Saguenay–Lac-Saint-Jean, Quebec

Saint-Augustin is a parish municipality in the Maria-Chapdelaine Regional County Municipality in the Saguenay–Lac-Saint-Jean region of Quebec, Canada. The municipality had a population of 351 as of the Canada 2016 Census.

Demographics
In the 2021 Census of Population conducted by Statistics Canada, Saint-Augustin had a population of $334$ living in $148$ of its $161$ total private dwellings, a change of NaN% from its 2016 population of $351$. With a land area of 104.25 km2, it had a population density of in 2021.

Population trend:
 * Population in 2016: 351 (2011 to 2016 population change: -12.3%)
 * Population in 2011: 400 (2006 to 2011 population change: 1.8%)
 * Population in 2006: 393
 * Population in 2001: 424
 * Population in 1996: 486
 * Population in 1991: 534

Mother tongue:
 * English as first language: 0%
 * French as first language: 100%
 * English and French as first language: 0%
 * Other as first language: 0%