Saint-Bonaventure (French pronunciation: [sɛ̃ bɔnavɑ̃tyʁ]) is a municipality in the Drummond Regional County Municipality of southwestern Quebec.

The population as of the Canada 2021 Census was 1,066.

It lies at the eastern terminus of Quebec Route 224, northeast of Saint-Guillaume.

In the 2021 Census of Population conducted by Statistics Canada, Saint-Bonaventure had a population of 1,066 living in 429 of its 457 total private dwellings, a change of 3.4% from its 2016 population of 1,031.

[5] Population trend:[6] Mother tongue language (2021)[7]