The riding, along the south shore of the Saint Lawrence River opposite the city of Trois-Rivières, straddles the Quebec regions of Centre-du-Québec and Montérégie.

According to the 2021 Canadian census[3] Ethnic groups: 96.2% White, 2.1% Indigenous Languages: 96.8% French, 1.0% English Religions: 75.9% Christian (70.3% Catholic, 5.6% Other), 23.6% None Median income: $38,000 (2020) Average income: $45,320 (2020) It was created as "Richelieu" riding in 1968 from parts of Nicolet—Yamaska and Richelieu—Verchères ridings.

Following the 2012 federal electoral redistribution the riding retained its boundaries but was renamed Bécancour—Nicolet—Saurel.

Following the 2022 federal electoral redistribution the riding will continue to retain its boundaries, but will be renamed Bécancour—Nicolet—Saurel—Alnôbak.

[4] This riding has elected the following members of Parliament: Bécancour—Nicolet—Saurel retained the same boundaries as its predecessor, Bas-Richelieu—Nicolet—Bécancour, for the 42nd Canadian federal election: Riding history from the Library of Parliament: