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The Political RecordFederal electoral districtsNo. 24033Quebec

Lac-Saint-Jean

Lac-Saint-Jean is a federal riding in Quebec. Alexis Brunelle-Duceppe (Bloc Québécois, first elected to the House in 2019) represents Lac-Saint-Jean. Alexis Brunelle-Duceppe (Bloc Québécois) held Lac-Saint-Jean for the Bloc Québécois in the 2025 election by 9,533 votes (19.9 points), with 46.2% of the vote. Denis Lemieux (Liberal) was second with 26.3%, on a turnout of 64.0% of 75,686 electors. Member as of .

Abitibi—Baie-James—Nunavik—Eeyou · LiberalJonquière—Hébertville—Pays-des-Bleuets · Bloc QuébécoisMontmorency—Charlevoix · ConservativeSaint-Maurice—Champlain · LiberalLac-Saint-Jean
Fig. 1 — Lac-Saint-Jean on the board, 2023 boundaries; the ridings next door as the House holds them on . Open it on the board →

Who represents Lac-Saint-Jean

BAlexis Brunelle-Duceppe
Alexis Brunelle-Duceppe's piece from the board. Illustration after the official portrait © House of Commons.

Alexis Brunelle-Duceppe

Member of Parliament for Lac-Saint-Jean

Bloc Québécois

MP since · 3 terms

  • Foreign Affairs and International Development committee
  • Subcommittee on Agenda and Procedure
  • Subcommittee on International Human Rights
  • Vice-Chair, Foreign Affairs and International Development committee

275 speeches in the 45th Parliament, most often on Citizenship Act.

Contact and office · House of Commons →

The 2025 result: Bloc Québécois hold

Share of the valid votes by candidate, Lac-Saint-Jean, April 28, 2025

Share of the valid votes by candidate, Lac-Saint-Jean, April 28, 2025Of the 47,756 valid votes, Alexis Brunelle-Duceppe (Bloc Québécois) took 46.2%, Denis Lemieux (Liberal) 26.3%, Dave Blackburn (Conservative) 24.7%, Hugues Boily-Maltais (New Democratic) 1.7% and Lorie Bouchard (People's Party) 1.1%.2025Turnout 64.0% of 75,686 electorsAlexis Brunelle-DuceppeBloc Québécois46.2% · 22,0699,533 votes ahead · 20.0 ptsDenis LemieuxLiberal26.3% · 12,536Dave BlackburnConservative24.7% · 11,792Hugues Boily-MaltaisNew Democratic1.7% · 819Lorie BouchardPeople's Party1.1% · 540050%100%
Share of the valid votes by candidate, Lac-Saint-Jean, April 28, 2025Of the 47,756 valid votes, Alexis Brunelle-Duceppe (Bloc Québécois) took 46.2%, Denis Lemieux (Liberal) 26.3%, Dave Blackburn (Conservative) 24.7%, Hugues Boily-Maltais (New Democratic) 1.7% and Lorie Bouchard (People's Party) 1.1%.2025Turnout 64.0% of 75,686 electorsAlexis Brunelle-DuceppeBloc Québécois46.2% · 22,0699,533 votes ahead · 20.0 ptsDenis LemieuxLiberal26.3% · 12,536Dave BlackburnConservative24.7% · 11,792Hugues Boily-MaltaisNew Democratic1.7% · 819Lorie BouchardPeople's Party1.1% · 540050%100%
Shares of the 47,756 valid votes; a candidate under 1% is counted with the others. Source: Elections Canada, official voting results, the 2025 general election.
The figures
CandidatePartyVotesShare
Alexis Brunelle-DuceppeBloc Québécois22,06946.2%
Denis LemieuxLiberal12,53626.3%
Dave BlackburnConservative11,79224.7%
Hugues Boily-MaltaisNew Democratic8191.7%
Lorie BouchardPeople's Party5401.1%

Alexis Brunelle-Duceppe (Bloc Québécois) won Lac-Saint-Jean on with 22,069 votes, 46.2% of the 47,756 valid votes. Denis Lemieux (Liberal) was second with 12,536 (26.3%), 9,533 votes and 19.9 points behind.

Of the 47,756 valid votes, Alexis Brunelle-Duceppe (Bloc Québécois) took 46.2%, Denis Lemieux (Liberal) 26.3%, Dave Blackburn (Conservative) 24.7%, Hugues Boily-Maltais (New Democratic) 1.7% and Lorie Bouchard (People's Party) 1.1%. Turnout was 64.0% of 75,686 electors: 48,445 ballots cast, 47,756 of them valid, for 5 candidates.

Since 2021

Against the 2021 result on these boundaries, the Bloc Québécois are down 3.5 (49.7% to 46.2%), the Liberals up 7.8 (18.5% to 26.3%), the Conservatives unchanged (24.7% to 24.7%) and the New Democrats down 1.5 (3.2% to 1.7%), 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 Lac-Saint-Jean at each general election, 2004 to 2025, on today's boundaries

  1. 2004Bloc Québécois57.9%by 32.8 points over the Liberals
  2. 2006†Bloc Québécois43.2%by 1.1 points over the Conservatives
  3. 2008changed handsConservative46.5%by 7.6 points over the Bloc Québécois
  4. 2011Conservative42.2%by 9.3 points over the New Democrats
  5. 2015Conservative33.3%by 4.8 points over the New Democrats
  6. 2019changed handsBloc Québécois44.0%by 18.9 points over the Liberals
  7. 2021Bloc Québécois49.7%by 25.0 points over the Conservatives
  8. 2025Bloc Québécois46.2%by 19.9 points over the Liberals
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 Québécois57.9%Liberal32.8carried, our estimate
2006†Bloc Québécois43.2%Conservative1.1carried, our estimate
2008Conservative46.5%Bloc Québécois7.6carried, our estimate
2011Conservative42.2%New Democratic9.3carried, our estimate
2015Conservative33.3%New Democratic4.8carried, our estimate
2019Bloc Québécois44.0%Liberal18.9carried, our estimate
2021Bloc Québécois49.7%Conservative25.0transposed by Elections Canada
2025Bloc Québécois46.2%Liberal19.9official result

The Bloc Québécois were first at five of the eight general elections from 2004 to 2025, the Conservatives at three; it changed hands twice. In 2025 the Bloc Québécois took 46.2% of the vote here, 7.3 points above their average of 38.9% at the seven general elections from 2004 to 2021.

On today's boundaries the Bloc Québécois were first here in 2004 (57.9%), 2006 (43.2%), 2019 (44.0%), 2021 (49.7%) and 2025 (46.2%) and the Conservatives in 2008 (46.5%), 2011 (42.2%) and 2015 (33.3%), 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 2006 the carried top two are within two points, so which party was first is less certain.

Before 2025
  • 2021 Bloc Québécois · Alexis Brunelle-Duceppe, by 12,567 votes (25.0 pts)
  • 2019 Bloc Québécois · Alexis Brunelle-Duceppe, by 10,206 votes (18.9 pts)
  • 2015 Conservative · Denis Lebel, by 2,658 votes (4.8 pts)

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

What kind of place Lac-Saint-Jean is

Population
92,0352021 census
Area
42,430km²
Density
2.2people per km²
Electors
75,686on the 2025 lists
Distinctions · ranked against all 343 ridings
  • Most French mother tongue: 98.5% have French as a mother tongue, the highest of 343 (Share with French as a mother tongue, 2021 census)1st
    Most French mother tongue
    98.5% have French as a mother tongue, the highest of 343 (Share with French as a mother tongue, 2021 census)
  • 2nd-smallest immigrant share: 0.9% are immigrants, 2nd lowest of 343 (Share who are immigrants, 2021 census)2nd
    2nd-smallest immigrant share
    0.9% are immigrants, 2nd lowest of 343 (Share who are immigrants, 2021 census)
  • Share with French as a mother tongue is 98.5% — about 61.6 times the median riding's 1.6%.
    highestlowest1st highest of 343
  • Share who are immigrants is 0.9% — about 5 percent of the median riding's 17.3%.
    highestlowest2nd lowest of 343
  • Median age is 49.2 — about 1.2 times the median riding's 41.6.
    highestlowest34th highest of 343
  • Share aged 25-64 with a bachelor's degree or higher is 15.3% — about 54 percent of the median riding's 28.2%.
    highestlowest39th lowest of 343
  • Median total household income is $66,500 — about 79 percent of the median riding's $84,000.
    highestlowest44th lowest of 343
  • Share of households that own their home is 71.5% — about the same as the median riding's 71.4%.
    highestlowest168th highest 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?

Yes — it shrank. All of today's Lac-Saint-Jean, its electors as well as its ground, comes from the old Lac-Saint-Jean, but it is only 70% of that riding by area. The rest went elsewhere.

Share of today's electorsFormer riding
100.0%Lac-Saint-Jean 100.0% of the area · 70% of it kept
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±
Alexis Brunelle-DuceppeBloc Québécois22,06946.2%49.7%−3.5
Denis LemieuxLiberal12,53626.3%18.5%+7.8
Dave BlackburnConservative11,79224.7%24.7%+0.0
Hugues Boily-MaltaisNew Democratic8191.7%3.2%−1.5
Lorie BouchardPeople's5401.1%—+1.1
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
11,792 votes
Conservative took more than the 9,533-vote margin. True in 100 of 343 ridings in 2025.
Election-day polls won by others
20 of 198
3 polls ended in an exact tie.
Fig. 2 — Each square is one election-day poll: ■ won by the Bloc Québécois (175) · ■ won by another party (20) · ▨ tied (3).
Flip the seatHypothetical

It would have taken 4,767 voters switching from Bloc Québécois to Liberal — 10.0% of the 47,756 valid votes, 9.9 points — to change the result. No ballot was cast this way; this only moves votes between the top two.

Bloc Québécois22,069
Liberal12,536
Still Bloc Québécois by 9,533 votes. Actual margin: 9,533.

IVElection day versus advance

Only 67.6% of this riding's votes were cast at election-day polls. The rest were advance or special ballots.

On election day the Bloc Québécois took 46.2%, the Liberals 23.3%, the Conservatives 27.4%, the New Democrats 1.9% and the People's Party 1.3%; in advance and special ballots, 46.3%, 32.4%, 19.1%, 1.3% and 0.8%, in that order.

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

Share of the valid votes by party, election-day polls against advance and special ballots, Lac-Saint-Jean, April 28, 2025On election day the Bloc Québécois took 46.2%, the Liberals 23.3%, the Conservatives 27.4%, the New Democrats 1.9% and the People's Party 1.3%; in advance and special ballots, 46.3%, 32.4%, 19.1%, 1.3% and 0.8%, in that order.Election dayAdvance and special± pts, the gapBloc Québécois46.2%46.3%+0.1 ptsLiberal23.3%32.4%+9.1 ptsConservative27.4%19.1%−8.3 ptsNew Democratic1.9%1.3%−0.6 ptsPeople's Party1.3%0.8%−0.5 pts050%100%
Share of the valid votes by party, election-day polls against advance and special ballots, Lac-Saint-Jean, April 28, 2025On election day the Bloc Québécois took 46.2%, the Liberals 23.3%, the Conservatives 27.4%, the New Democrats 1.9% and the People's Party 1.3%; in advance and special ballots, 46.3%, 32.4%, 19.1%, 1.3% and 0.8%, in that order.Election dayAdvance and special± pts, the gapBloc Québécois46.2%46.3%+0.1 ptsLiberal23.3%32.4%+9.1 ptsConservative27.4%19.1%−8.3 ptsNew Democratic1.9%1.3%−0.6 ptsPeople's Party1.3%0.8%−0.5 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
Bloc Québécois46.2%46.3%+0.1
Liberal23.3%32.4%+9.1
Conservative27.4%19.1%−8.3
New Democratic1.9%1.3%−0.6
People's Party1.3%0.8%−0.5
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 — Lac-Saint-Jean and its 4 neighbouring ridings.

Sources and citation

"Lac-Saint-Jean — federal riding profile and 2025 results." The Political Record. https://politicalrecord.ca/riding/lac-saint-jean/ 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.