Saint-Didace (French pronunciation: [sɛ̃ didas]) is a parish municipality in the D'Autray Regional County Municipality in the Lanaudière region of Quebec, Canada.

In the 2021 Census of Population conducted by Statistics Canada, Saint-Didace had a population of 688 living in 357 of its 523 total private dwellings, a change of 5.5% from its 2016 population of 652.

With a land area of 99.6 km2 (38.5 sq mi), it had a population density of 6.9/km2 (17.9/sq mi) in 2021.

[5] Mother tongue: Commission scolaire des Samares operates Francophone schools:

This Quebec location article is a stub.