Saint-Jules (French pronunciation: [sɛ̃ ʒyl]) is a parish municipality in the Beauce-Centre Regional County Municipality in the Chaudière-Appalaches region of Quebec, Canada.

Its population was 547 as of the Canada 2021 Census.

It is named after Pope Julius I.

In the 2021 Census of Population conducted by Statistics Canada, Saint-Jules had a population of 547 living in 204 of its 215 total private dwellings, a change of 1.5% from its 2016 population of 539.

With a land area of 55.73 km2 (21.52 sq mi), it had a population density of 9.8/km2 (25.4/sq mi) in 2021.