The Political Record · Federal electoral districts
Thérèse-De Blainville
Federal riding · QC · No. 24074 · 2023 representation order
- Member
- Madeleine Chenette Liberal
- 2025 result
- Liberal gain by 8,691 votes
- Turnout
- 72.7% of 90,085 electors
- Population
- 112,160 2021 census
- Area
- 81 km²
- Figures as of
- 2026-09-25
Distinctions · ranked against all 343 ridings
- Changed hands in 2025One of 58 of 343 ridings where the winning party changed from the transposed 2021 result (12 of 78 in Quebec)
- Turnout72.7% of 90,085 electors voted · 79th of 343 in Canada
- Area, smallest first81 km² · 108th of 343 in Canada
In brief
- Madeleine Chenette took the seat for the Liberals by 8,691 votes (+13.5 points).
- 3% of today's riding was drawn from other ridings in 2023.
- Election-day and advance voters agreed on the winner; 63.9% of votes were cast on the day.
- Share with French as a mother tongue is the 45th highest of 343 ridings.
Illustration after: © House of Commons
Member of Parliament
Madeleine Chenette
- Parliamentary Secretary to the Minister of Canadian Identity and Culture and Minister responsible for Official Languages and to the Secretary of State (Sport)
- Member: Official Languages
IDid this riding change?
Yes. 3% of today's Thérèse-De Blainville came from ridings other than the old Thérèse-De Blainville.
Share of today's areaFormer riding
96.6%Thérèse-De Blainville
3.2%Terrebonne 2% of it kept
0.1%Mirabel 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
Liberal gain
Elected
Madeleine Chenette
Liberal
29,519
45.8% of valid votes
Margin
8,691
votes · +13.5 pts
Runner-up
Marie-Noëlle Closson-Duquette
Bloc Québécois
20,828
32.3% of valid votes
Liberal 45.8% · Bloc Québécois 32.3% · Conservative 18.7% · New Democratic 2.5%
Turnout72.7% of 90,085 electors
| Candidate | Party | Votes | % | 2021 | ± |
|---|---|---|---|---|---|
| Madeleine Chenette | Liberal | 29,519 | 45.8% | 34.6% | +11.2 |
| Marie-Noëlle Closson-Duquette | Bloc Québécois | 20,828 | 32.3% | 40.2% | −7.9 |
| Julie Bergeron | Conservative | 12,019 | 18.7% | 10.9% | +7.8 |
| Michel Lacroix | New Democratic | 1,585 | 2.5% | 7.2% | −4.7 |
1 further candidate, under 1% of the vote
| Chantal Lavoie | People's | 446 | 0.7% |
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
6.8 pts
Half the margin: the share that would have had to move from first to second.
Third place vs. the margin
12,019 votes
Conservative took more than the 8,691-vote margin. True in 100 of 343 ridings in 2025.
Election-day polls won by others
59 of 199
5 polls ended in an exact tie.
Flip the seatHypothetical
It would have taken 4,346 voters switching from Liberal to Bloc Québécois — 6.7% of the 64,397 valid votes, 6.8 points — to change the result. No ballot was cast this way; this only moves votes between the top two.
Liberal29,519
Bloc Québécois20,828
Still Liberal by 8,691 votes. Actual margin: 8,691.
IVElection day versus advance
Only 63.9% of this riding's votes were cast at election-day polls. The rest were advance or special ballots.
Election dayAdvance & specialGap
Liberal42.5%51.7%+9.2
Bloc Québécois32.6%31.9%−0.7
Conservative21.4%13.9%−7.5
New Democratic2.7%2.0%−0.7
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 $92,000 — a little higher than the median riding's $84,000.highestlowest101st highest of 343
- Median age is 42.8 — about the same as the median riding's 41.6.highestlowest132nd highest of 343
- Share aged 25-64 with a bachelor's degree or higher is 29.7% — a little higher than the median riding's 28.2%.highestlowest160th highest of 343
- Share who are immigrants is 11.6% — about 67 percent of the median riding's 17.3%.highestlowest132nd lowest of 343
- Share of households that own their home is 70.7% — about the same as the median riding's 71.4%.highestlowest165th lowest of 343
- Share with French as a mother tongue is 82.6% — about 51.6 times the median riding's 1.6%.highestlowest45th 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. 24074QC · 2025
Thérèse-De Blainville
Madeleine Chenette
- Result
- Liberal gain by 8,691
- Turnout
- 72.7%
- Population
- 112,160
- Area
- 81 km²
Changed hands in 2025TurnoutArea, smallest first
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.