The Political Record · Federal electoral districts

Ville-Marie—Le Sud-Ouest—Île-des-Soeurs

Federal riding · QC · No. 24077 · 2023 representation order
Fig. 1 — Ville-Marie—Le Sud-Ouest—Île-des-Soeurs, 2023 boundaries.
Member
Marc Miller Liberal
2025 result
Liberal hold by 21,792 votes
Turnout
59.8% of 82,037 electors
Population
114,370 2021 census
Area
27 km²
Figures as of
2026-09-25
Distinctions · ranked against all 343 ridings
  • Most university degrees: 65.3% of 25–64s hold a bachelor's or higher, 7th highest of 343 (Share aged 25-64 with a bachelor's degree or higher, 2021 census)7th
    Most university degrees
    65.3% of 25–64s hold a bachelor's or higher, 7th highest of 343 (Share aged 25-64 with a bachelor's degree or higher, 2021 census)
  • Smallest households: 1.8 people per household, 8th lowest of 343 (Average household size, 2021 census)8th
    Smallest households
    1.8 people per household, 8th lowest of 343 (Average household size, 2021 census)
  • Youngest median age: Median age 34.4, 9th lowest of 343 (Median age, 2021 census)9th
    Youngest median age
    Median age 34.4, 9th lowest of 343 (Median age, 2021 census)
  • Won every election-day poll: All 173 election-day polls went to the winner · one of 15 of 34315
    Won every election-day poll
    All 173 election-day polls went to the winner · one of 15 of 343
  • Widest margin in Quebec: Won by 44.9 points (21,792 votes) · 2nd of 78 in Quebec · 28th of 343 in Canada2nd
    Widest margin in Quebec
    Won by 44.9 points (21,792 votes) · 2nd of 78 in Quebec · 28th of 343 in Canada
In brief
  1. Marc Miller held the seat for the Liberals by 21,792 votes (+44.9 points).
  2. The riding shrank in 2023: it keeps 69% of the old Ville-Marie—Le Sud-Ouest—Île-des-Soeurs.
  3. Election-day and advance voters agreed on the winner; 55.8% of votes were cast on the day.
  4. Share aged 25-64 with a bachelor's degree or higher is the 7th highest of 343 ridings.
Illustration after: © House of Commons
Member of Parliament
Marc Miller
Liberal · first elected 2015-10-19 · 4 terms
  • Minister of Canadian Identity and Culture
  • Minister responsible for Official Languages

IDid this riding change?

Yes — it shrank. All of today's Ville-Marie—Le Sud-Ouest—Île-des-Soeurs comes from the old Ville-Marie—Le Sud-Ouest—Île-des-Soeurs, but it is only 69% of that riding. The rest went elsewhere.

Share of today's areaFormer riding
99.9%Ville-Marie—Le Sud-Ouest—Île-des-Soeurs 69% of it kept
How this is measured. Share of the current riding's area that came from each former riding, by intersecting the 2013 and 2023 boundary files. It is area, not population. Elections Canada counts 48 of 343 ridings as entirely unchanged.

IIThe 2025 result

Liberal hold
Elected
Marc Miller
Liberal
30,905
63.7% of valid votes
Margin
21,792
votes · +44.9 pts
Runner-up
Steve Shanahan
Conservative
9,113
18.8% of valid votes
Liberal 63.7% · Conservative 18.8% · Bloc Québécois 9.0% · New Democratic 6.0% · Green 2.1%
Turnout59.8% of 82,037 electors
CandidatePartyVotes%2021±
Marc MillerLiberal30,90563.7%50.6%+13.1
Steve ShanahanConservative9,11318.8%12.6%+6.2
Kevin MajaduconBloc Québécois4,3649.0%11.8%−2.8
Suzanne DufresneNew Democratic2,9326.0%17.8%−11.8
Nathe PerroneGreen9962.1%2.6%−0.5
1 further candidate, under 1% of the vote
Giovanni Di PlacidoOther2090.4%
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

Swing needed to flip
22.4 pts
Half the margin: the share that would have had to move from first to second.
Third place vs. the margin
4,364 votes
Bloc Québécois took fewer than the 21,792-vote margin.
Election-day polls won by others
0 of 173
No poll ended in a tie.
Fig. 2 — Each square is one election-day poll: ■ won by the Liberals (173) · ■ won by another party (0).
Flip the seatHypothetical

It would have taken 10,897 voters switching from Liberal to Conservative — 22.5% of the 48,519 valid votes, 22.4 points — to change the result. No ballot was cast this way; this only moves votes between the top two.

Liberal30,905
Conservative9,113
Still Liberal by 21,792 votes. Actual margin: 21,792.

IVElection day versus advance

Only 55.8% of this riding's votes were cast at election-day polls. The rest were advance or special ballots.

Election dayAdvance & specialGap
Liberal59.2%69.3%+10.1
Conservative21.6%15.2%−6.4
Bloc Québécois9.6%8.2%−1.4
New Democratic6.5%5.4%−1.1
Green2.5%1.5%−1.0
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.

VWhat kind of place this is

2021 Census, keyed to the 2023 representation order. Comparisons are against the median riding, not Canada as a whole. Each rule places this riding among all 343.

VIWhere it is

loading basemap…
Fig. 3 — Ville-Marie—Le Sud-Ouest—Île-des-Soeurs and its 5 neighbouring ridings.

The card

No. 24077QC · 2025
Ville-Marie—Le Sud-Ouest—Île-des-Soeurs
Marc Miller
Result
Liberal hold by 21,792
Turnout
59.8%
Population
114,370
Area
27 km²
Most university degrees: 65.3% of 25–64s hold a bachelor's or higher, 7th highest of 343 (Share aged 25-64 with a bachelor's degree or higher, 2021 census)7thMost university degreesSmallest households: 1.8 people per household, 8th lowest of 343 (Average household size, 2021 census)8thSmallest householdsYoungest median age: Median age 34.4, 9th lowest of 343 (Median age, 2021 census)9thYoungest median ageWon every election-day poll: All 173 election-day polls went to the winner · one of 15 of 34315Won every election-day pollWidest margin in Quebec: Won by 44.9 points (21,792 votes) · 2nd of 78 in Quebec · 28th of 343 in Canada2ndWidest margin in Quebec
One of 343The Political Record

A card exists for every one of the 343 ridings.

Every figure on it is the figure on this page: the 2025 result and margin, turnout, the 2021 census population, the area, and the distinctions ranked against all 343 ridings. The portrait is an illustration after the official House of Commons photograph.

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