The Political Record · Federal electoral districts
Saint-Léonard—Saint-Michel
Federal riding · QC · No. 24069 · 2023 representation order
- Member
- Patricia Lattanzio Liberal
- 2025 result
- Liberal hold by 18,376 votes
- Turnout
- 58.0% of 72,428 electors
- Population
- 112,905 2021 census
- Area
- 20 km²
- Figures as of
- 2026-09-25
Distinctions · ranked against all 343 ridings
- Fewest home owners32.3% of households own their home, 10th lowest of 343 (Share of households that own their home, 2021 census)
- Won every election-day pollAll 167 election-day polls went to the winner · one of 15 of 343
- Widest margin in QuebecWon by 44.7 points (18,376 votes) · 3rd of 78 in Quebec · 29th of 343 in Canada
In brief
- Patricia Lattanzio held the seat for the Liberals by 18,376 votes (+44.7 points).
- The riding shrank in 2023: it keeps 95% of the old Saint-Léonard—Saint-Michel.
- Election-day and advance voters agreed on the winner; 68.3% of votes were cast on the day.
- Share of households that own their home is the 10th lowest of 343 ridings.
Illustration after: © House of Commons
Member of Parliament
Patricia Lattanzio
- Parliamentary Secretary to the Minister of Justice and Attorney General of Canada
- Member: Justice and Human Rights
- Member: Subcommittee on Agenda and Procedure
IDid this riding change?
Yes — it shrank. All of today's Saint-Léonard—Saint-Michel comes from the old Saint-Léonard—Saint-Michel, but it is only 95% of that riding. The rest went elsewhere.
Share of today's areaFormer riding
99.8%Saint-Léonard—Saint-Michel 95% 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
Patricia Lattanzio
Liberal
26,833
65.3% of valid votes
Margin
18,376
votes · +44.7 pts
Runner-up
Panagiota Koroneos
Conservative
8,457
20.6% of valid votes
Liberal 65.3% · Conservative 20.6% · Bloc Québécois 7.2% · New Democratic 6.0%
Turnout58.0% of 72,428 electors
| Candidate | Party | Votes | % | 2021 | ± |
|---|---|---|---|---|---|
| Patricia Lattanzio | Liberal | 26,833 | 65.3% | 68.2% | −2.9 |
| Panagiota Koroneos | Conservative | 8,457 | 20.6% | 10.3% | +10.3 |
| Laurie Lelacheur | Bloc Québécois | 2,938 | 7.2% | 7.8% | −0.6 |
| Marwan El Attar | New Democratic | 2,450 | 6.0% | 8.0% | −2.0 |
1 further candidate, under 1% of the vote
| Caroline Mailloux | People's | 388 | 0.9% |
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
2,938 votes
Bloc Québécois took fewer than the 18,376-vote margin.
Election-day polls won by others
0 of 167
No poll ended in a tie.
Flip the seatHypothetical
It would have taken 9,189 voters switching from Liberal to Conservative — 22.4% of the 41,066 valid votes, 22.4 points — to change the result. No ballot was cast this way; this only moves votes between the top two.
Liberal26,833
Conservative8,457
Still Liberal by 18,376 votes. Actual margin: 18,376.
IVElection day versus advance
Only 68.3% of this riding's votes were cast at election-day polls. The rest were advance or special ballots.
Election dayAdvance & specialGap
Liberal64.1%68.0%+3.9
Conservative21.6%18.4%−3.2
New Democratic6.7%4.4%−2.3
Bloc Québécois6.6%8.4%+1.8
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 $63,200 — about 75 percent of the median riding's $84,000.highestlowest31st lowest of 343
- Median age is 40.4 — about the same as the median riding's 41.6.highestlowest123rd lowest of 343
- Share aged 25-64 with a bachelor's degree or higher is 25.7% — a little lower than the median riding's 28.2%.highestlowest149th lowest of 343
- Share who are immigrants is 47.7% — about 2.8 times the median riding's 17.3%.highestlowest38th highest of 343
- Share of households that own their home is 32.3% — about 45 percent of the median riding's 71.4%.highestlowest10th lowest of 343
- Share with French as a mother tongue is 30.9% — about 19.3 times the median riding's 1.6%.highestlowest80th 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. 24069QC · 2025
Saint-Léonard—Saint-Michel
Patricia Lattanzio
- Result
- Liberal hold by 18,376
- Turnout
- 58.0%
- Population
- 112,905
- Area
- 20 km²
Fewest home ownersWon every election-day pollWidest 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.
Open a neighbour to collect the next one.