The Political Record · Federal electoral districts
Rosemont—La Petite-Patrie
Federal riding · QC · No. 24065 · 2023 representation order
- Member
- Vacant
- 2025 result
- New Democratic hold by 5,601 votes
- Turnout
- 72.3% of 83,229 electors
- Population
- 112,910 2021 census
- Area
- 11 km²
- Figures as of
- 2026-09-25
Distinctions · ranked against all 343 ridings
- Smallest by area in Canada11 km² · 3rd of 343
- Fewest home owners31.4% of households own their home, 8th lowest of 343 (Share of households that own their home, 2021 census)
- Smallest households1.8 people per household, 8th lowest of 343 (Average household size, 2021 census)
In brief
- Alexandre Boulerice held the seat for the New Democratics by 5,601 votes (+9.4 points).
- 1% of today's riding was drawn from other ridings in 2023.
- Election-day and advance voters agreed on the winner; 62.8% of votes were cast on the day.
- Share of households that own their home is the 8th lowest of 343 ridings.
IDid this riding change?
Yes. 1% of today's Rosemont—La Petite-Patrie came from ridings other than the old Rosemont—La Petite-Patrie.
Share of today's areaFormer riding
99.4%Rosemont—La Petite-Patrie
0.4%Laurier—Sainte-Marie 0% of it kept
0.1%Outremont 0% 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
New Democratic hold
Elected
Alexandre Boulerice
New Democratic
24,358
41.0% of valid votes
Margin
5,601
votes · +9.4 pts
Runner-up
Jean-Sébastien Vallée
Liberal
18,757
31.6% of valid votes
New Democratic 41.0% · Liberal 31.6% · Bloc Québécois 18.3% · Conservative 6.9% · Green 2.3%
Turnout72.3% of 83,229 electors
| Candidate | Party | Votes | % | 2021 | ± |
|---|---|---|---|---|---|
| Alexandre Boulerice | New Democratic | 24,358 | 41.0% | 47.7% | −6.7 |
| Jean-Sébastien Vallée | Liberal | 18,757 | 31.6% | 22.7% | +8.9 |
| Olivier Gignac | Bloc Québécois | 10,864 | 18.3% | 21.0% | −2.7 |
| Laetitia Tchatat | Conservative | 4,073 | 6.9% | 3.9% | +3.0 |
| Benoît Morham | Green | 1,368 | 2.3% | 2.3% | +0.0 |
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
4.7 pts
Half the margin: the share that would have had to move from first to second.
Third place vs. the margin
10,864 votes
Bloc Québécois took more than the 5,601-vote margin. True in 100 of 343 ridings in 2025.
Election-day polls won by others
44 of 187
3 polls ended in an exact tie.
Flip the seatHypothetical
It would have taken 2,801 voters switching from New Democratic to Liberal — 4.7% of the 59,420 valid votes, 4.7 points — to change the result. No ballot was cast this way; this only moves votes between the top two.
New Democratic24,358
Liberal18,757
Still New Democratic by 5,601 votes. Actual margin: 5,601.
IVElection day versus advance
Only 62.8% of this riding's votes were cast at election-day polls. The rest were advance or special ballots.
Election dayAdvance & specialGap
New Democratic40.6%41.7%+1.1
Liberal30.4%33.6%+3.2
Bloc Québécois18.5%17.9%−0.6
Conservative7.9%5.2%−2.7
Green2.6%1.8%−0.8
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
- Median total household income is $61,600 — about 73 percent of the median riding's $84,000.highestlowest21st lowest of 343
- Median age is 37.6 — a little lower than the median riding's 41.6.highestlowest52nd lowest of 343
- Share aged 25-64 with a bachelor's degree or higher is 53.6% — about 1.9 times the median riding's 28.2%.highestlowest34th highest of 343
- Share who are immigrants is 19.9% — about 1.2 times the median riding's 17.3%.highestlowest157th highest of 343
- Share of households that own their home is 31.4% — about 44 percent of the median riding's 71.4%.highestlowest8th lowest of 343
- Share with French as a mother tongue is 74.2% — about 46.4 times the median riding's 1.6%.highestlowest53rd highest of 343
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…
The card
No. 24065QC · 2025
Rosemont—La Petite-Patrie
- Result
- New Democratic hold by 5,601
- Turnout
- 72.3%
- Population
- 112,910
- Area
- 11 km²
Smallest by area in CanadaFewest home ownersSmallest households
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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