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The Political RecordFederal electoral districtsNo. 24042Quebec

Longueuil—Saint-Hubert

Longueuil—Saint-Hubert is a federal riding in Quebec. Natilien Joseph (Liberal) has represented Longueuil—Saint-Hubert since the 2025 election. Natilien Joseph (Liberal) took Longueuil—Saint-Hubert from the Bloc Québécois in the 2025 election by 769 votes (1.3 points), with 41.0% of the vote. Denis Trudel (Bloc Québécois) was second with 39.7%, on a turnout of 69.6% of 86,591 electors. Member as of .

Hochelaga—Rosemont-Est · LiberalLa Pointe-de-l'Île · Bloc QuébécoisLongueuil—Charles-LeMoyne—Greenfield Park · LiberalMont-Saint-Bruno—L’Acadie · LiberalPierre-Boucher—Les Patriotes—Verchères · Bloc QuébécoisLongueuil—Saint-Hubert
Fig. 1 — Longueuil—Saint-Hubert on the board, 2023 boundaries; the ridings next door as the House holds them on . Open it on the board →

Who represents Longueuil—Saint-Hubert

LNatilien Joseph
Natilien Joseph's piece from the board. Illustration after the official portrait © House of Commons.

Natilien Joseph

Member of Parliament for Longueuil—Saint-Hubert

Liberal

MP since · first term

  • Citizenship and Immigration committee
  • Human Resources, Skills and Social Development and the Status of Persons with Disabilities committee

62 speeches in the 45th Parliament, most often on Safe Social Media Act.

Contact and office · House of Commons →

The 2025 result: Liberal gain from the Bloc Québécois

Share of the valid votes by candidate, Longueuil—Saint-Hubert, April 28, 2025

Share of the valid votes by candidate, Longueuil—Saint-Hubert, April 28, 2025Of the 59,138 valid votes, Natilien Joseph (Liberal) took 41.0%, Denis Trudel (Bloc Québécois) 39.7%, Martine Boucher (Conservative) 14.3% and Nesrine Benhadj (New Democratic) 5.0%.2025Turnout 69.6% of 86,591 electorsNatilien JosephLiberal41.0% · 24,237769 votes ahead · 1.3 ptsDenis TrudelBloc Québécois39.7% · 23,468Martine BoucherConservative14.3% · 8,447Nesrine BenhadjNew Democratic5.0% · 2,986050%100%
Share of the valid votes by candidate, Longueuil—Saint-Hubert, April 28, 2025Of the 59,138 valid votes, Natilien Joseph (Liberal) took 41.0%, Denis Trudel (Bloc Québécois) 39.7%, Martine Boucher (Conservative) 14.3% and Nesrine Benhadj (New Democratic) 5.0%.2025Turnout 69.6% of 86,591 electorsNatilien JosephLiberal41.0% · 24,237769 votes ahead · 1.3 ptsDenis TrudelBloc Québécois39.7% · 23,468Martine BoucherConservative14.3% · 8,447Nesrine BenhadjNew Democratic5.0% · 2,986050%100%
Shares of the 59,138 valid votes; a candidate under 1% is counted with the others. Source: Elections Canada, official voting results, the 2025 general election.
The figures
CandidatePartyVotesShare
Natilien JosephLiberal24,23741.0%
Denis TrudelBloc Québécois23,46839.7%
Martine BoucherConservative8,44714.3%
Nesrine BenhadjNew Democratic2,9865.0%

Natilien Joseph (Liberal) won Longueuil—Saint-Hubert on with 24,237 votes, 41.0% of the 59,138 valid votes. Denis Trudel (Bloc Québécois) was second with 23,468 (39.7%), 769 votes and 1.3 points behind.

Of the 59,138 valid votes, Natilien Joseph (Liberal) took 41.0%, Denis Trudel (Bloc Québécois) 39.7%, Martine Boucher (Conservative) 14.3% and Nesrine Benhadj (New Democratic) 5.0%. Turnout was 69.6% of 86,591 electors: 60,310 ballots cast, 59,138 of them valid, for 4 candidates.

Since 2021

Against the 2021 result on these boundaries, the Liberals are up 3.4 (37.6% to 41.0%), the Bloc Québécois down 0.7 (40.4% to 39.7%), the Conservatives up 7.5 (6.8% to 14.3%) and the New Democrats down 2.8 (7.8% to 5.0%), 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 Longueuil—Saint-Hubert at each general election, 2004 to 2025, on today's boundaries

  1. 2004Bloc Québécois59.5%by 32.7 points over the Liberals
  2. 2006Bloc Québécois54.0%by 34.9 points over the Conservatives
  3. 2008Bloc Québécois45.8%by 23.9 points over the Liberals
  4. 2011changed handsNew Democratic50.1%by 22.7 points over the Bloc Québécois
  5. 2015†New Democratic31.2%by 1.2 points over the Liberals
  6. 2019changed handsBloc Québécois38.5%by 4.3 points over the Liberals
  7. 2021Bloc Québécois40.4%by 2.8 points over the Liberals
  8. 2025changed handsLiberal41.0%by 1.3 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 Québécois59.5%Liberal32.7carried, our estimate
2006Bloc Québécois54.0%Conservative34.9carried, our estimate
2008Bloc Québécois45.8%Liberal23.9carried, our estimate
2011New Democratic50.1%Bloc Québécois22.7carried, our estimate
2015†New Democratic31.2%Liberal1.2carried, our estimate
2019Bloc Québécois38.5%Liberal4.3carried, our estimate
2021Bloc Québécois40.4%Liberal2.8transposed by Elections Canada
2025Liberal41.0%Bloc Québécois1.3official 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, 16.0 points above their average of 25.0% at the seven general elections from 2004 to 2021.

On today's boundaries the Bloc Québécois were first here in 2004 (59.5%), 2006 (54.0%), 2008 (45.8%), 2019 (38.5%) and 2021 (40.4%), the NDP in 2011 (50.1%) and 2015 (31.2%) 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 · Denis Trudel, by 1,649 votes (2.9 pts)
  • 2019 Bloc Québécois · Denis Trudel, by 2,590 votes (4.3 pts)
  • 2015 New Democratic · Pierre Nantel, by 703 votes (1.2 pts)

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

What kind of place Longueuil—Saint-Hubert is

Population
115,0802021 census
Area
63km²
Density
1,821people per km²
Electors
86,591on the 2025 lists
Distinctions · ranked against all 343 ridings
  • 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)
  • Decided before election day: On election-day polls alone another party led; advance and special ballots decided it · one of 27 of 34327
    Decided before election day
    On election-day polls alone another party led; advance and special ballots decided it · one of 27 of 343
  • Share with French as a mother tongue is 76.6% — about 47.9 times the median riding's 1.6%.
    highestlowest51st highest of 343
  • Share of households that own their home is 53.7% — about 75 percent of the median riding's 71.4%.
    highestlowest59th lowest of 343
  • Median total household income is $74,000 — a little lower than the median riding's $84,000.
    highestlowest85th lowest of 343
  • Share aged 25-64 with a bachelor's degree or higher is 34.2% — about 1.2 times the median riding's 28.2%.
    highestlowest127th highest of 343
  • Median age is 42.8 — about the same as the median riding's 41.6.
    highestlowest132nd highest of 343
  • Share who are immigrants is 19.5% — a little higher than the median riding's 17.3%.
    highestlowest158th 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. 100% of the 2025 electors in today's Longueuil—Saint-Hubert lived in the old Longueuil—Saint-Hubert; by area, 1% of the riding came from other ridings.

Share of today's electorsFormer riding
100.0%Longueuil—Saint-Hubert 99.3% of the area
0.0%Pierre-Boucher—Les Patriotes—Verchères 0.7% of the area · 0.1% 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±
Natilien JosephLiberal24,23741.0%37.6%+3.4
Denis TrudelBloc Québécois23,46839.7%40.4%−0.7
Martine BoucherConservative8,44714.3%6.8%+7.5
Nesrine BenhadjNew Democratic2,9865.0%7.8%−2.8
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
8,447 votes
Conservative took more than the 769-vote margin. True in 100 of 343 ridings in 2025.
Election-day polls won by others
98 of 191
3 polls ended in an exact tie.
Fig. 2 — Each square is one election-day poll: ■ won by the Liberals (90) · ■ won by another party (98) · ▨ tied (3).
Flip the seatHypothetical

It would have taken 385 voters switching from Liberal to Bloc Québécois — 0.7% of the 59,138 valid votes, 0.7 points — to change the result. No ballot was cast this way; this only moves votes between the top two.

Liberal24,237
Bloc Québécois23,468
Still Liberal by 769 votes. Actual margin: 769.

IVElection day versus advance

Only 56.8% of this riding's votes were cast at election-day polls. The rest were advance or special ballots. On election day alone, the Bloc Québécois led here — the seat was decided by ballots cast before the day.

On election day the Liberals took 39.1%, the Bloc Québécois 38.7%, the Conservatives 16.4% and the New Democrats 5.9%; in advance and special ballots, 43.5%, 41.0%, 11.6% and 4.0%, in that order.

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

Share of the valid votes by party, election-day polls against advance and special ballots, Longueuil—Saint-Hubert, April 28, 2025On election day the Liberals took 39.1%, the Bloc Québécois 38.7%, the Conservatives 16.4% and the New Democrats 5.9%; in advance and special ballots, 43.5%, 41.0%, 11.6% and 4.0%, in that order.Election dayAdvance and special± pts, the gapLiberal39.1%43.5%+4.4 ptsBloc Québécois38.7%41.0%+2.3 ptsConservative16.4%11.6%−4.8 ptsNew Democratic5.9%4.0%−1.9 pts050%100%
Share of the valid votes by party, election-day polls against advance and special ballots, Longueuil—Saint-Hubert, April 28, 2025On election day the Liberals took 39.1%, the Bloc Québécois 38.7%, the Conservatives 16.4% and the New Democrats 5.9%; in advance and special ballots, 43.5%, 41.0%, 11.6% and 4.0%, in that order.Election dayAdvance and special± pts, the gapLiberal39.1%43.5%+4.4 ptsBloc Québécois38.7%41.0%+2.3 ptsConservative16.4%11.6%−4.8 ptsNew Democratic5.9%4.0%−1.9 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
Liberal39.1%43.5%+4.4
Bloc Québécois38.7%41.0%+2.3
Conservative16.4%11.6%−4.8
New Democratic5.9%4.0%−1.9
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 — Longueuil—Saint-Hubert and its 5 neighbouring ridings.

Sources and citation

"Longueuil—Saint-Hubert — federal riding profile and 2025 results." The Political Record. https://politicalrecord.ca/riding/longueuil-saint-hubert/ 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.