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The Political RecordFederal electoral districtsNo. 35064Ontario

Mississauga—Lakeshore

Mississauga—Lakeshore is a federal riding in Ontario. Charles Sousa (Liberal, first elected to the House in 2022) represents Mississauga—Lakeshore. Charles Sousa (Liberal) held Mississauga—Lakeshore for the Liberals in the 2025 election by 5,555 votes (8.4 points), with 52.4% of the vote. Tom Ellard (Conservative) was second with 44.0%, on a turnout of 70.5% of 95,220 electors. Member as of .

Etobicoke—Lakeshore · LiberalMississauga Centre · LiberalMississauga East—Cooksville · LiberalMississauga—Erin Mills · LiberalOakville East · LiberalMississauga—Lakeshore
Fig. 1 — Mississauga—Lakeshore on the board, 2023 boundaries; the ridings next door as the House holds them on . Open it on the board →

Who represents Mississauga—Lakeshore

LCharles Sousa
Charles Sousa's piece from the board. Illustration after the official portrait © House of Commons.

Charles Sousa

Member of Parliament for Mississauga—Lakeshore

Liberal

MP since · 2 terms

  • Chair, National Defence committee
  • Chair, Subcommittee on Agenda and Procedure
  • Liaison committee
  • National Defence committee

75 speeches in the 45th Parliament, most often on Budget 2025 Implementation Act, No. 1.

Contact and office · House of Commons →

The 2025 result: Liberal hold

Share of the valid votes by candidate, Mississauga—Lakeshore, April 28, 2025

Share of the valid votes by candidate, Mississauga—Lakeshore, April 28, 2025Of the 66,797 valid votes, Charles Sousa (Liberal) took 52.4%, Tom Ellard (Conservative) 44.0% and Evelyn Butler (New Democratic) 1.9%; the 4 other candidates took 1.7% together.2025Turnout 70.5% of 95,220 electorsCharles SousaLiberal52.4% · 34,9715,555 votes ahead · 8.3 ptsTom EllardConservative44.0% · 29,416Evelyn ButlerNew Democratic1.9% · 1,254Others (4)1.7% · 1,156050%100%
Share of the valid votes by candidate, Mississauga—Lakeshore, April 28, 2025Of the 66,797 valid votes, Charles Sousa (Liberal) took 52.4%, Tom Ellard (Conservative) 44.0% and Evelyn Butler (New Democratic) 1.9%; the 4 other candidates took 1.7% together.2025Turnout 70.5% of 95,220 electorsCharles SousaLiberal52.4% · 34,9715,555 votes ahead · 8.3 ptsTom EllardConservative44.0% · 29,416Evelyn ButlerNew Democratic1.9% · 1,254Others (4)1.7% · 1,156050%100%
Shares of the 66,797 valid votes; a candidate under 1% is counted with the others. Source: Elections Canada, official voting results, the 2025 general election.
The figures
CandidatePartyVotesShare
Charles SousaLiberal34,97152.4%
Tom EllardConservative29,41644.0%
Evelyn ButlerNew Democratic1,2541.9%
Others (4)1,1561.7%

Charles Sousa (Liberal) won Mississauga—Lakeshore on with 34,971 votes, 52.4% of the 66,797 valid votes. Tom Ellard (Conservative) was second with 29,416 (44.0%), 5,555 votes and 8.4 points behind.

Of the 66,797 valid votes, Charles Sousa (Liberal) took 52.4%, Tom Ellard (Conservative) 44.0% and Evelyn Butler (New Democratic) 1.9%; the 4 other candidates took 1.7% together. Turnout was 70.5% of 95,220 electors: 67,114 ballots cast, 66,797 of them valid, for 7 candidates.

Since 2021

Against the 2021 result on these boundaries, the Liberals are up 7.8 (44.6% to 52.4%), the Conservatives up 5.8 (38.2% to 44.0%) and the New Democrats down 7.8 (9.7% to 1.9%), 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: usually Liberal

The party first in Mississauga—Lakeshore at each general election, 2004 to 2025, on today's boundaries

  1. 2004Liberal51.9%by 18.6 points over the Conservatives
  2. 2006Liberal44.4%by 4.6 points over the Conservatives
  3. 2008Liberal44.2%by 4.7 points over the Conservatives
  4. 2011changed handsConservative46.3%by 9.3 points over the Liberals
  5. 2015changed handsLiberal47.8%by 6.8 points over the Conservatives
  6. 2019Liberal48.5%by 11.3 points over the Conservatives
  7. 2021Liberal44.6%by 6.4 points over the Conservatives
  8. 2025Liberal52.4%by 8.4 points over the Conservatives
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
2004Liberal51.9%Conservative18.6carried, our estimate
2006Liberal44.4%Conservative4.6carried, our estimate
2008Liberal44.2%Conservative4.7carried, our estimate
2011Conservative46.3%Liberal9.3carried, our estimate
2015Liberal47.8%Conservative6.8carried, our estimate
2019Liberal48.5%Conservative11.3carried, our estimate
2021Liberal44.6%Conservative6.4transposed by Elections Canada
2025Liberal52.4%Conservative8.4official result

The Liberals were first here at seven of the eight general elections from 2004 to 2025; the Conservatives were first in 2011. In 2025 the Liberals took 52.4% of the vote here, 6.9 points above their average of 45.5% at the seven general elections from 2004 to 2021.

On today's boundaries the Liberals were first here in 2004 (51.9%), 2006 (44.4%), 2008 (44.2%), 2015 (47.8%), 2019 (48.5%), 2021 (44.6%) and 2025 (52.4%) and the Conservatives in 2011 (46.3%), 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 83 of the 343 ridings are usually one party's. 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 Liberal · Sven Spengemann, by 3,523 votes (6.2 pts)
  • 2019 Liberal · Sven Spengemann, by 6,786 votes (11.1 pts)
  • 2015 Liberal · Sven Spengemann, by 3,844 votes (6.5 pts)

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

What kind of place Mississauga—Lakeshore is

Population
119,9352021 census
Area
93km²
Density
1,292people per km²
Electors
95,220on the 2025 lists
  • Median total household income is $104,000 — about 1.2 times the median riding's $84,000.
    highestlowest48th highest of 343
  • Share aged 25-64 with a bachelor's degree or higher is 45.2% — about 1.6 times the median riding's 28.2%.
    highestlowest62nd highest of 343
  • Share who are immigrants is 38.1% — about 2.2 times the median riding's 17.3%.
    highestlowest67th highest of 343
  • Median age is 44.0 — a little higher than the median riding's 41.6.
    highestlowest97th highest of 343
  • Share with French as a mother tongue is 1.3% — about 81 percent of the median riding's 1.6%.
    highestlowest141st lowest of 343
  • Share of households that own their home is 68.8% — a little lower than the median riding's 71.4%.
    highestlowest142nd 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?

Yes. 98% of the 2025 electors in today's Mississauga—Lakeshore lived in the old Mississauga—Lakeshore; by area, 1% of the riding came from other ridings.

Share of today's electorsFormer riding
97.7%Mississauga—Lakeshore 99.1% of the area
2.3%Mississauga East—Cooksville 0.8% of the area · 2% 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±
Charles SousaLiberal34,97152.4%44.6%+7.8
Tom EllardConservative29,41644.0%38.2%+5.8
Evelyn ButlerNew Democratic1,2541.9%9.7%−7.8
4 further candidates, each under 1% of the vote
Mary KidnewGreen5870.9%
Fahad RaoPeople's3340.5%
Carlton DarbyIndependent1220.2%
Anna Di CarloOther1130.2%
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
1,254 votes
New Democratic took fewer than the 5,555-vote margin.
Election-day polls won by others
102 of 228
9 polls ended in an exact tie.
Fig. 2 — Each square is one election-day poll: ■ won by the Liberals (117) · ■ won by another party (102) · ▨ tied (9).
Flip the seatHypothetical

It would have taken 2,778 voters switching from Liberal to Conservative — 4.2% of the 66,797 valid votes, 4.2 points — to change the result. No ballot was cast this way; this only moves votes between the top two.

Liberal34,971
Conservative29,416
Still Liberal by 5,555 votes. Actual margin: 5,555.

IVElection day versus advance

Only 54.6% of this riding's votes were cast at election-day polls. The rest were advance or special ballots.

On election day the Liberals took 48.9%, the Conservatives 46.6%, the New Democrats 2.3% and the Greens 1.0%; in advance and special ballots, 56.5%, 40.9%, 1.3% and 0.7%, in that order.

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

Share of the valid votes by party, election-day polls against advance and special ballots, Mississauga—Lakeshore, April 28, 2025On election day the Liberals took 48.9%, the Conservatives 46.6%, the New Democrats 2.3% and the Greens 1.0%; in advance and special ballots, 56.5%, 40.9%, 1.3% and 0.7%, in that order.Election dayAdvance and special± pts, the gapLiberal48.9%56.5%+7.6 ptsConservative46.6%40.9%−5.7 ptsNew Democratic2.3%1.3%−1.0 ptsGreen1.0%0.7%−0.3 pts050%100%
Share of the valid votes by party, election-day polls against advance and special ballots, Mississauga—Lakeshore, April 28, 2025On election day the Liberals took 48.9%, the Conservatives 46.6%, the New Democrats 2.3% and the Greens 1.0%; in advance and special ballots, 56.5%, 40.9%, 1.3% and 0.7%, in that order.Election dayAdvance and special± pts, the gapLiberal48.9%56.5%+7.6 ptsConservative46.6%40.9%−5.7 ptsNew Democratic2.3%1.3%−1.0 ptsGreen1.0%0.7%−0.3 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
Liberal48.9%56.5%+7.6
Conservative46.6%40.9%−5.7
New Democratic2.3%1.3%−1.0
Green1.0%0.7%−0.3
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 — Mississauga—Lakeshore and its 5 neighbouring ridings.

Sources and citation

"Mississauga—Lakeshore — federal riding profile and 2025 results." The Political Record. https://politicalrecord.ca/riding/mississauga-lakeshore/ 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.