Plessisville () was a parish municipality in the Centre-du-Québec region of Quebec. It completely surrounded the city of the same name. On 1 January 2024, the parish municipality merged with the city of Plessisville.
In the 2021 Census of Population conducted by Statistics Canada, Plessisville 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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