Saint-Hilaire-de-Dorset is a parish municipality in the Beauce-Sartigan Regional County Municipality in the Chaudière-Appalaches region of Quebec, Canada.
The municipality is named after Hilary of Poitiers and the county of Dorset in England.
Saint-Hilaire-de-Dorset was officially created on March 28, 1946. Thirty years after the creation of the religious parish.
In the 2021 Census of Population conducted by Statistics Canada, Saint-Hilaire-de-Dorset had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of , it had a population density of in 2021.
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