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The Political RecordFederal electoral districtsNo. 24075Quebec

Trois-Rivières

Trois-Rivières is a federal riding in Quebec. Caroline Desrochers (Liberal) has represented Trois-Rivières since the 2025 election. Caroline Desrochers (Liberal) took Trois-Rivières from the Bloc Québécois in the 2025 election by 8,226 votes (13.4 points), with 41.0% of the vote. René Villemure (Bloc Québécois) was second with 27.6%, on a turnout of 68.0% of 91,717 electors. Member as of .

Berthier—Maskinongé · Bloc QuébécoisBécancour—Nicolet—Saurel—Alnôbak · Bloc QuébécoisSaint-Maurice—Champlain · LiberalTrois-Rivières
Fig. 1 — Trois-Rivières on the board, 2023 boundaries; the ridings next door as the House holds them on . Open it on the board →

Who represents Trois-Rivières

LCaroline Desrochers
Caroline Desrochers's piece from the board. Illustration after the official portrait © House of Commons.

Caroline Desrochers

Member of Parliament for Trois-Rivières

Liberal

MP since · first term

  • Parliamentary Secretary to the Minister of Housing and Infrastructure
  • Human Resources, Skills and Social Development and the Status of Persons with Disabilities committee

199 speeches in the 45th Parliament, most often on Housing.

Contact and office · House of Commons →

The 2025 result: Liberal gain from the Bloc Québécois

Share of the valid votes by candidate, Trois-Rivières, April 28, 2025

Share of the valid votes by candidate, Trois-Rivières, April 28, 2025Of the 61,317 valid votes, Caroline Desrochers (Liberal) took 41.0%, René Villemure (Bloc Québécois) 27.6%, Yves Levesque (Conservative) 27.2% and Matthew Sévigny (New Democratic) 2.3%; the 3 other candidates took 1.8% together.2025Turnout 68.0% of 91,717 electorsCaroline DesrochersLiberal41.0% · 25,1478,226 votes ahead · 13.4 ptsRené VillemureBloc Québécois27.6% · 16,921Yves LevesqueConservative27.2% · 16,708Matthew SévignyNew Democratic2.3% · 1,437Others (3)1.8% · 1,104050%100%
Share of the valid votes by candidate, Trois-Rivières, April 28, 2025Of the 61,317 valid votes, Caroline Desrochers (Liberal) took 41.0%, René Villemure (Bloc Québécois) 27.6%, Yves Levesque (Conservative) 27.2% and Matthew Sévigny (New Democratic) 2.3%; the 3 other candidates took 1.8% together.2025Turnout 68.0% of 91,717 electorsCaroline DesrochersLiberal41.0% · 25,1478,226 votes ahead · 13.4 ptsRené VillemureBloc Québécois27.6% · 16,921Yves LevesqueConservative27.2% · 16,708Matthew SévignyNew Democratic2.3% · 1,437Others (3)1.8% · 1,104050%100%
Shares of the 61,317 valid votes; a candidate under 1% is counted with the others. Source: Elections Canada, official voting results, the 2025 general election.
The figures
CandidatePartyVotesShare
Caroline DesrochersLiberal25,14741.0%
René VillemureBloc Québécois16,92127.6%
Yves LevesqueConservative16,70827.2%
Matthew SévignyNew Democratic1,4372.3%
Others (3)1,1041.8%

Caroline Desrochers (Liberal) won Trois-Rivières on with 25,147 votes, 41.0% of the 61,317 valid votes. René Villemure (Bloc Québécois) was second with 16,921 (27.6%), 8,226 votes and 13.4 points behind.

Of the 61,317 valid votes, Caroline Desrochers (Liberal) took 41.0%, René Villemure (Bloc Québécois) 27.6%, Yves Levesque (Conservative) 27.2% and Matthew Sévigny (New Democratic) 2.3%; the 3 other candidates took 1.8% together. Turnout was 68.0% of 91,717 electors: 62,363 ballots cast, 61,317 of them valid, for 7 candidates.

Since 2021

Against the 2021 result on these boundaries, the Liberals are up 13.0 (28.0% to 41.0%), the Bloc Québécois down 1.3 (28.9% to 27.6%), the Conservatives down 1.6 (28.8% to 27.2%) and the New Democrats down 5.6 (7.9% to 2.3%), in points of the valid votes.

2021 is Elections Canada's transposition of that election onto the 2023 boundaries, not an election held on these lines.

Since 2004: no party has held it

The party first in Trois-Rivières at each general election, 2004 to 2025, on today's boundaries

  1. 2004Bloc Québécois57.3%by 31.0 points over the Liberals
  2. 2006Bloc Québécois46.5%by 14.9 points over the Conservatives
  3. 2008Bloc Québécois45.4%by 21.7 points over the Conservatives
  4. 2011changed handsNew Democratic50.2%by 25.1 points over the Bloc Québécois
  5. 2015†New Democratic31.8%by 1.6 points over the Liberals
  6. 2019changed handsBloc Québécois28.5%by 2.4 points over the Liberals
  7. 2021Bloc Québécois28.9%by 0.1 points over the Conservatives
  8. 2025changed handsLiberal41.0%by 13.4 points over the Bloc Québécois
Each election carried onto today's boundaries by where the riding's 2025 electors lived: our estimate to 2019, Elections Canada's transposition for 2021, the official result for 2025. Parties are counted as they ran. † The first two are within two points, so which party was first is less certain.
The figures
YearFirstShareSecondMargin (pts)Basis
2004Bloc Québécois57.3%Liberal31.0carried, our estimate
2006Bloc Québécois46.5%Conservative14.9carried, our estimate
2008Bloc Québécois45.4%Conservative21.7carried, our estimate
2011New Democratic50.2%Bloc Québécois25.1carried, our estimate
2015†New Democratic31.8%Liberal1.6carried, our estimate
2019Bloc Québécois28.5%Liberal2.4carried, our estimate
2021Bloc Québécois28.9%Conservative0.1transposed by Elections Canada
2025Liberal41.0%Bloc Québécois13.4official result

The Bloc Québécois were first at five of the eight general elections from 2004 to 2025, the NDP at two and the Liberals at one; it changed hands three times. In 2025 the Liberals took 41.0% of the vote here, 19.8 points above their average of 21.2% at the seven general elections from 2004 to 2021.

On today's boundaries the Bloc Québécois were first here in 2004 (57.3%), 2006 (46.5%), 2008 (45.4%), 2019 (28.5%) and 2021 (28.9%), the NDP in 2011 (50.2%) and 2015 (31.8%) and the Liberals in 2025 (41.0%), each with the share of the valid votes shown.

A stronghold is a party first at every general election since 2004, by an average of 20 points or more over the next party; held, first at every one; usually, first at all but one. By-elections are not counted. By this rule 160 of the 343 ridings have no degree. The results before 2021 are carried onto today's boundaries by where the riding's 2025 electors lived: our estimate, from the older boundaries of Taylor, Lucas, Kirby and Hewitt and the results in Sevi's "Who Runs?". 2021 is Elections Canada's transposition, and 2025 the official result. In 2015 the carried top two are within two points, so which party was first is less certain.

Before 2025
  • 2021 Bloc Québécois · René Villemure, by 83 votes (0.2 pts)
  • 2019 Bloc Québécois · Louise Charbonneau, by 1,466 votes (2.4 pts)
  • 2015 New Democratic · Robert Aubin, by 969 votes (1.6 pts)

In the old Trois-Rivières on the 2013 boundaries, the riding most of the 2025 electors in today's Trois-Rivières lived in; Elections Canada's official results.

What kind of place Trois-Rivières is

Population
114,0652021 census
Area
145km²
Density
785people per km²
Electors
91,717on the 2025 lists
Distinctions · ranked against all 343 ridings
  • 4th-lowest household income: Median household income $56,800, 4th lowest of 343 (Median total household income, 2021 census)4th
    4th-lowest household income
    Median household income $56,800, 4th lowest of 343 (Median total household income, 2021 census)
  • Changed hands in 2025: One of 58 of 343 ridings where the winning party changed from the transposed 2021 result (12 of 78 in Quebec)58
    Changed hands in 2025
    One of 58 of 343 ridings where the winning party changed from the transposed 2021 result (12 of 78 in Quebec)
  • Boundaries unchanged in 2023: Covers the same ground as its predecessor, and the same electors · one of 54 of 343 by area and electors54
    Boundaries unchanged in 2023
    Covers the same ground as its predecessor, and the same electors · one of 54 of 343 by area and electors
  • Median total household income is $56,800 — about 68 percent of the median riding's $84,000.
    highestlowest4th lowest of 343
  • Share with French as a mother tongue is 93.3% — about 58.3 times the median riding's 1.6%.
    highestlowest21st highest of 343
  • Median age is 47.6 — a little higher than the median riding's 41.6.
    highestlowest41st highest of 343
  • Share of households that own their home is 49.9% — about 70 percent of the median riding's 71.4%.
    highestlowest47th lowest of 343
  • Share who are immigrants is 5.1% — about 29 percent of the median riding's 17.3%.
    highestlowest58th lowest of 343
  • Share aged 25-64 with a bachelor's degree or higher is 25.7% — a little lower than the median riding's 28.2%.
    highestlowest149th lowest of 343

2021 Census on the 2023 boundaries; each rule places this riding among all 343. Density is the census population over the riding's area.

IDid this riding change?

Essentially no. Today's Trois-Rivières covers almost exactly the same ground as the Trois-Rivières riding it replaced, and 100% of its 2025 electors lived in it.

How this is measured. Electors: the share of the current riding's 2025 ordinary-list electors who lived in each former riding, each 2025 polling division placed in the 2013 riding a point inside it falls in. Area: the share of the current riding's area that came from each former riding, by intersecting the 2013 and 2023 boundary files, and how much of the former riding that part was. Area is land, not population. Elections Canada counts 48 of 343 ridings as entirely unchanged.

IIThe 2025 result

CandidatePartyVotes%2021±
Caroline DesrochersLiberal25,14741.0%28.0%+13.0
René VillemureBloc Québécois16,92127.6%28.9%−1.3
Yves LevesqueConservative16,70827.2%28.8%−1.6
Matthew SévignyNew Democratic1,4372.3%7.9%−5.6
3 further candidates, each under 1% of the vote
David TurcotteGreen5690.9%
Yan PatryPeople's3200.5%
Mathieu DoyonOther2150.4%
The 2021 column is Elections Canada's official transposition of the 2021 result onto these 2023 boundaries. ± is the change in each party's share. It is not "swing": with four or more competitive parties there is no single pair to swing between.

IIIHow close was it, really

Third place vs. the margin
16,708 votes
Conservative took more than the 8,226-vote margin. True in 100 of 343 ridings in 2025.
Election-day polls won by others
100 of 227
9 polls ended in an exact tie.
Fig. 2 — Each square is one election-day poll: ■ won by the Liberals (118) · ■ won by another party (100) · ▨ tied (9).
Flip the seatHypothetical

It would have taken 4,114 voters switching from Liberal to Bloc Québécois — 6.7% of the 61,317 valid votes, 6.7 points — to change the result. No ballot was cast this way; this only moves votes between the top two.

Liberal25,147
Bloc Québécois16,921
Still Liberal by 8,226 votes. Actual margin: 8,226.

IVElection day versus advance

Only 56.6% of this riding's votes were cast at election-day polls. The rest were advance or special ballots.

On election day the Liberals took 37.4%, the Bloc Québécois 27.4%, the Conservatives 30.2%, the New Democrats 2.7% and the Greens 1.2%; in advance and special ballots, 45.7%, 27.8%, 23.4%, 1.8% and 0.6%, in that order.

Share of the valid votes by party, election-day polls against advance and special ballots, Trois-Rivières, April 28, 2025

Share of the valid votes by party, election-day polls against advance and special ballots, Trois-Rivières, April 28, 2025On election day the Liberals took 37.4%, the Bloc Québécois 27.4%, the Conservatives 30.2%, the New Democrats 2.7% and the Greens 1.2%; in advance and special ballots, 45.7%, 27.8%, 23.4%, 1.8% and 0.6%, in that order.Election dayAdvance and special± pts, the gapLiberal37.4%45.7%+8.3 ptsBloc Québécois27.4%27.8%+0.4 ptsConservative30.2%23.4%−6.8 ptsNew Democratic2.7%1.8%−0.9 ptsGreen1.2%0.6%−0.6 pts050%100%
Share of the valid votes by party, election-day polls against advance and special ballots, Trois-Rivières, April 28, 2025On election day the Liberals took 37.4%, the Bloc Québécois 27.4%, the Conservatives 30.2%, the New Democrats 2.7% and the Greens 1.2%; in advance and special ballots, 45.7%, 27.8%, 23.4%, 1.8% and 0.6%, in that order.Election dayAdvance and special± pts, the gapLiberal37.4%45.7%+8.3 ptsBloc Québécois27.4%27.8%+0.4 ptsConservative30.2%23.4%−6.8 ptsNew Democratic2.7%1.8%−0.9 ptsGreen1.2%0.6%−0.6 pts050%100%
Shares of the valid votes cast at election-day polls, and of those cast at advance polls, at mobile polls and by special ballot; the gap is the second less the first, in points. Source: Elections Canada, poll-by-poll results, the 2025 general election.
The figures
PartyElection dayAdvance and specialGap
Liberal37.4%45.7%+8.3
Bloc Québécois27.4%27.8%+0.4
Conservative30.2%23.4%−6.8
New Democratic2.7%1.8%−0.9
Green1.2%0.6%−0.6
An association, not a cause. Voters who cast ballots before election day differed from those who turned out on the day. It does not say why. There is no poll-level turnout figure on this page: the elector count on a polling division includes people who voted in advance and were counted elsewhere.

VWhere it is

loading basemap…
Fig. 3 — Trois-Rivières and its 3 neighbouring ridings.

Sources and citation

"Trois-Rivières — federal riding profile and 2025 results." The Political Record. https://politicalrecord.ca/riding/trois-rivieres/ Accessed 2026-11-10.

Results and transposition: Elections Canada. Boundaries: Elections Canada / Statistics Canada, Open Government Licence – Canada. Census: Statistics Canada 2021 Census. Member: House of Commons.

Figures reconcile to the certified national total of 19,641,663 votes. The member is as the House of Commons listed them on 2026-11-01. Page built 2026-11-10.