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The Political RecordFederal electoral districtsNo. 24032Quebec

La Prairie—Atateken

La Prairie—Atateken is a federal riding in Quebec. Jacques Ramsay (Liberal) has represented La Prairie—Atateken since the 2025 election. Jacques Ramsay (Liberal) took La Prairie—Atateken from the Bloc Québécois in the 2025 election by 6,186 votes (9.3 points), with 44.1% of the vote. Alain Therrien (Bloc Québécois) was second with 34.8%, on a turnout of 72.9% of 92,660 electors. Member as of .

Brossard—Saint-Lambert · LiberalChâteauguay—Les Jardins-de-Napierville · LiberalDorval—Lachine—LaSalle · LiberalLaSalle—Émard—Verdun · LiberalSaint-Jean · Bloc QuébécoisLa Prairie—Atateken
Fig. 1 — La Prairie—Atateken on the board, 2023 boundaries; the ridings next door as the House holds them on . Open it on the board →

Who represents La Prairie—Atateken

LJacques Ramsay
Jacques Ramsay's piece from the board. Illustration after the official portrait © House of Commons.

Jacques Ramsay

Member of Parliament for La Prairie—Atateken

Liberal

MP since · first term

  • Parliamentary Secretary to the Minister of Public Safety
  • Public Safety and National Security committee
  • Subcommittee on Agenda and Procedure

172 speeches in the 45th Parliament, most often on Public Safety.

Contact and office · House of Commons →

The 2025 result: Liberal gain from the Bloc Québécois

Share of the valid votes by candidate, La Prairie—Atateken, April 28, 2025

Share of the valid votes by candidate, La Prairie—Atateken, April 28, 2025Of the 66,761 valid votes, Jacques Ramsay (Liberal) took 44.1%, Alain Therrien (Bloc Québécois) 34.8%, Dave Pouliot (Conservative) 17.2%, Mathieu Boisvert (New Democratic) 2.4% and Barbara Joannette (Green) 1.0%; one other candidate took 0.5%.2025Turnout 72.9% of 92,660 electorsJacques RamsayLiberal44.1% · 29,4186,186 votes ahead · 9.3 ptsAlain TherrienBloc Québécois34.8% · 23,232Dave PouliotConservative17.2% · 11,505Mathieu BoisvertNew Democratic2.4% · 1,588Barbara JoannetteGreen1.0% · 657Other (1)0.5% · 361050%100%
Share of the valid votes by candidate, La Prairie—Atateken, April 28, 2025Of the 66,761 valid votes, Jacques Ramsay (Liberal) took 44.1%, Alain Therrien (Bloc Québécois) 34.8%, Dave Pouliot (Conservative) 17.2%, Mathieu Boisvert (New Democratic) 2.4% and Barbara Joannette (Green) 1.0%; one other candidate took 0.5%.2025Turnout 72.9% of 92,660 electorsJacques RamsayLiberal44.1% · 29,4186,186 votes ahead · 9.3 ptsAlain TherrienBloc Québécois34.8% · 23,232Dave PouliotConservative17.2% · 11,505Mathieu BoisvertNew Democratic2.4% · 1,588Barbara JoannetteGreen1.0% · 657Other (1)0.5% · 361050%100%
Shares of the 66,761 valid votes; a candidate under 1% is counted with the others. Source: Elections Canada, official voting results, the 2025 general election.
The figures
CandidatePartyVotesShare
Jacques RamsayLiberal29,41844.1%
Alain TherrienBloc Québécois23,23234.8%
Dave PouliotConservative11,50517.2%
Mathieu BoisvertNew Democratic1,5882.4%
Barbara JoannetteGreen6571.0%
Other (1)3610.5%

Jacques Ramsay (Liberal) won La Prairie—Atateken on with 29,418 votes, 44.1% of the 66,761 valid votes. Alain Therrien (Bloc Québécois) was second with 23,232 (34.8%), 6,186 votes and 9.3 points behind.

Of the 66,761 valid votes, Jacques Ramsay (Liberal) took 44.1%, Alain Therrien (Bloc Québécois) 34.8%, Dave Pouliot (Conservative) 17.2%, Mathieu Boisvert (New Democratic) 2.4% and Barbara Joannette (Green) 1.0%; one other candidate took 0.5%. Turnout was 72.9% of 92,660 electors: 67,548 ballots cast, 66,761 of them valid, for 6 candidates.

Since 2021

Against the 2021 result on these boundaries, the Liberals are up 10.0 (34.1% to 44.1%), the Bloc Québécois down 8.3 (43.1% to 34.8%), the Conservatives up 7.4 (9.8% to 17.2%), the New Democrats down 4.8 (7.2% to 2.4%) and the Greens down 0.6 (1.6% to 1.0%), 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 La Prairie—Atateken at each general election, 2004 to 2025, on today's boundaries

  1. 2004Bloc Québécois49.4%by 11.7 points over the Liberals
  2. 2006Bloc Québécois44.5%by 17.9 points over the Liberals
  3. 2008Bloc Québécois39.2%by 14.0 points over the Liberals
  4. 2011changed handsNew Democratic46.7%by 24.5 points over the Bloc Québécois
  5. 2015changed handsLiberal36.5%by 10.3 points over the Bloc Québécois
  6. 2019changed handsBloc Québécois41.8%by 5.2 points over the Liberals
  7. 2021Bloc Québécois43.1%by 9.0 points over the Liberals
  8. 2025changed handsLiberal44.1%by 9.3 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 figures
YearFirstShareSecondMargin (pts)Basis
2004Bloc Québécois49.4%Liberal11.7carried, our estimate
2006Bloc Québécois44.5%Liberal17.9carried, our estimate
2008Bloc Québécois39.2%Liberal14.0carried, our estimate
2011New Democratic46.7%Bloc Québécois24.5carried, our estimate
2015Liberal36.5%Bloc Québécois10.3carried, our estimate
2019Bloc Québécois41.8%Liberal5.2carried, our estimate
2021Bloc Québécois43.1%Liberal9.0transposed by Elections Canada
2025Liberal44.1%Bloc Québécois9.3official result

The Bloc Québécois were first at five of the eight general elections from 2004 to 2025, the Liberals at two and the NDP at one; it changed hands four times. In 2025 the Liberals took 44.1% of the vote here, 13.4 points above their average of 30.7% at the seven general elections from 2004 to 2021.

On today's boundaries the Bloc Québécois were first here in 2004 (49.4%), 2006 (44.5%), 2008 (39.2%), 2019 (41.8%) and 2021 (43.1%), the NDP in 2011 (46.7%) and the Liberals in 2015 (36.5%) and 2025 (44.1%), 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.

Before 2025
  • 2021 Bloc Québécois · Alain Therrien, by 5,392 votes (9.1 pts)
  • 2019 Bloc Québécois · Alain Therrien, by 3,203 votes (5.2 pts)
  • 2015 Liberal · Jean-Claude Poissant, by 5,886 votes (10.3 pts)

In La Prairie on the 2013 boundaries, the riding most of the 2025 electors in today's La Prairie—Atateken lived in; Elections Canada's official results.

What kind of place La Prairie—Atateken is

Population
114,9702021 census
Area
317km²
Density
363people per km²
Electors
92,660on 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)
  • 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
  • Share with French as a mother tongue is 77.2% — about 48.3 times the median riding's 1.6%.
    highestlowest50th highest of 343
  • Median total household income is $97,000 — about 1.2 times the median riding's $84,000.
    highestlowest79th highest of 343
  • Share of households that own their home is 75.9% — a little higher than the median riding's 71.4%.
    highestlowest110th highest of 343
  • Share aged 25-64 with a bachelor's degree or higher is 33.0% — about 1.2 times the median riding's 28.2%.
    highestlowest136th highest of 343
  • Share who are immigrants is 13.9% — about 80 percent of the median riding's 17.3%.
    highestlowest153rd lowest of 343
  • Median age is 41.6 — about the same as the median riding's 41.6.
    highestlowest163rd 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?

Essentially no. Today's La Prairie—Atateken covers almost exactly the same ground as the La Prairie 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±
Jacques RamsayLiberal29,41844.1%34.1%+10.0
Alain TherrienBloc Québécois23,23234.8%43.1%−8.3
Dave PouliotConservative11,50517.2%9.8%+7.4
Mathieu BoisvertNew Democratic1,5882.4%7.2%−4.8
Barbara JoannetteGreen6571.0%1.6%−0.6
1 further candidate, under 1% of the vote
Ruth FontainePeople's3610.5%
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
11,505 votes
Conservative took more than the 6,186-vote margin. True in 100 of 343 ridings in 2025.
Election-day polls won by others
88 of 192
No poll ended in a tie.
Fig. 2 — Each square is one election-day poll: ■ won by the Liberals (104) · ■ won by another party (88).
Flip the seatHypothetical

It would have taken 3,094 voters switching from Liberal to Bloc Québécois — 4.6% of the 66,761 valid votes, 4.7 points — to change the result. No ballot was cast this way; this only moves votes between the top two.

Liberal29,418
Bloc Québécois23,232
Still Liberal by 6,186 votes. Actual margin: 6,186.

IVElection day versus advance

Only 57.0% of this riding's votes were cast at election-day polls. The rest were advance or special ballots.

On election day the Liberals took 40.6%, the Bloc Québécois 35.1%, the Conservatives 19.9%, the New Democrats 2.6% and the Greens 1.2%; in advance and special ballots, 48.7%, 34.4%, 13.6%, 2.1% and 0.7%, in that order.

Share of the valid votes by party, election-day polls against advance and special ballots, La Prairie—Atateken, April 28, 2025

Share of the valid votes by party, election-day polls against advance and special ballots, La Prairie—Atateken, April 28, 2025On election day the Liberals took 40.6%, the Bloc Québécois 35.1%, the Conservatives 19.9%, the New Democrats 2.6% and the Greens 1.2%; in advance and special ballots, 48.7%, 34.4%, 13.6%, 2.1% and 0.7%, in that order.Election dayAdvance and special± pts, the gapLiberal40.6%48.7%+8.1 ptsBloc Québécois35.1%34.4%−0.7 ptsConservative19.9%13.6%−6.3 ptsNew Democratic2.6%2.1%−0.5 ptsGreen1.2%0.7%−0.5 pts050%100%
Share of the valid votes by party, election-day polls against advance and special ballots, La Prairie—Atateken, April 28, 2025On election day the Liberals took 40.6%, the Bloc Québécois 35.1%, the Conservatives 19.9%, the New Democrats 2.6% and the Greens 1.2%; in advance and special ballots, 48.7%, 34.4%, 13.6%, 2.1% and 0.7%, in that order.Election dayAdvance and special± pts, the gapLiberal40.6%48.7%+8.1 ptsBloc Québécois35.1%34.4%−0.7 ptsConservative19.9%13.6%−6.3 ptsNew Democratic2.6%2.1%−0.5 ptsGreen1.2%0.7%−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
Liberal40.6%48.7%+8.1
Bloc Québécois35.1%34.4%−0.7
Conservative19.9%13.6%−6.3
New Democratic2.6%2.1%−0.5
Green1.2%0.7%−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 — La Prairie—Atateken and its 5 neighbouring ridings.

Sources and citation

"La Prairie—Atateken — federal riding profile and 2025 results." The Political Record. https://politicalrecord.ca/riding/la-prairie-atateken/ 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.