The Political Record · Federal electoral districts
Trois-Rivières
Federal riding · QC · No. 24075 · 2023 representation order
- Member
- Caroline Desrochers Liberal
- 2025 result
- Liberal gain by 8,226 votes
- Turnout
- 68.0% of 91,717 electors
- Population
- 114,065 2021 census
- Area
- 145 km²
- Figures as of
- 2026-09-25
Distinctions · ranked against all 343 ridings
- Lowest household incomeMedian household income $56,800, 4th lowest of 343 (Median total household income, 2021 census)
- Changed hands in 2025One of 58 of 343 ridings where the winning party changed from the transposed 2021 result (12 of 78 in Quebec)
- Boundaries unchanged in 2023Covers the same ground as its predecessor · one of 59 of 343 by area
In brief
Illustration after: © House of Commons
Member of Parliament
Caroline Desrochers
- Parliamentary Secretary to the Minister of Housing and Infrastructure
- Member: Human Resources, Skills and Social Development and the Status of Persons with Disabilities
IDid this riding change?
Essentially no. Today's Trois-Rivières covers almost exactly the same ground as the Trois-Rivières riding it replaced.
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
Caroline Desrochers
Liberal
25,147
41.0% of valid votes
Margin
8,226
votes · +13.4 pts
Runner-up
René Villemure
Bloc Québécois
16,921
27.6% of valid votes
Liberal 41.0% · Bloc Québécois 27.6% · Conservative 27.2% · New Democratic 2.3%
Turnout68.0% of 91,717 electors
| Candidate | Party | Votes | % | 2021 | ± |
|---|---|---|---|---|---|
| Caroline Desrochers | Liberal | 25,147 | 41.0% | 28.0% | +13.0 |
| René Villemure | Bloc Québécois | 16,921 | 27.6% | 28.9% | −1.3 |
| Yves Levesque | Conservative | 16,708 | 27.2% | 28.8% | −1.6 |
| Matthew Sévigny | New Democratic | 1,437 | 2.3% | 7.9% | −5.6 |
3 further candidates, each under 1% of the vote
| David Turcotte | Green | 569 | 0.9% |
| Yan Patry | People's | 320 | 0.5% |
| Mathieu Doyon | Other | 215 | 0.4% |
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
6.7 pts
Half the margin: the share that would have had to move from first to second.
Third place vs. the margin
16,708 votes
Conservative took more than the 8,226-vote margin. True in 100 of 343 ridings in 2025.
Election-day polls won by others
100 of 227
9 polls ended in an exact tie.
Flip the seatHypothetical
It would have taken 4,114 voters switching from Liberal to Bloc Québécois — 6.7% of the 61,317 valid votes, 6.7 points — to change the result. No ballot was cast this way; this only moves votes between the top two.
Liberal25,147
Bloc Québécois16,921
Still Liberal by 8,226 votes. Actual margin: 8,226.
IVElection day versus advance
Only 56.6% of this riding's votes were cast at election-day polls. The rest were advance or special ballots.
Election dayAdvance & specialGap
Liberal37.4%45.7%+8.3
Conservative30.2%23.4%−6.8
Bloc Québécois27.4%27.8%+0.4
New Democratic2.7%1.8%−0.9
Green1.2%0.6%−0.6
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 $56,800 — about 68 percent of the median riding's $84,000.highestlowest4th lowest of 343
- Median age is 47.6 — a little higher than the median riding's 41.6.highestlowest41st highest 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 5.1% — about 29 percent of the median riding's 17.3%.highestlowest58th lowest of 343
- Share of households that own their home is 49.9% — about 70 percent of the median riding's 71.4%.highestlowest47th lowest of 343
- Share with French as a mother tongue is 93.3% — about 58.3 times the median riding's 1.6%.highestlowest21st 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. 24075QC · 2025
Trois-Rivières
Caroline Desrochers
- Result
- Liberal gain by 8,226
- Turnout
- 68.0%
- Population
- 114,065
- Area
- 145 km²
Lowest household incomeChanged hands in 2025Boundaries unchanged in 2023
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.