Riding profile
Côte-du-Sud
The question
Côte-du-Sud: who wins this toss-up?
Editorial read
Côte-du-Sud, a mixed riding in Quebec, elected a member with the CAQ in the previous cycle, with a 24-point margin. The Vote-Scope model projects the Quebec Conservatives ahead at 31% vote share, against 28% for the CAQ, and the race could swing.
Sitting member
Mathieu Rivest
Sits with CAQ
Who's running
The candidates
Declared and on-ballot candidates for the upcoming election.
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CAQ Incumbent 
Mathieu Rivest
Whether as a manager, educator, musician, conductor or volunteer, Mathieu Rivest is fully committed to the Côte-du-Sud riding, and so for over 25 years. As General Manager of the Saint-Alexandre-de-Kamouraska Music Camp, he recently received the Master Craftsman 2022 award, presented by the Quebec Camp Industry, in recognition of his expertise in cultural management.
source ↗ -
PLQ Challenger Nancy St-Pierre
source ↗
Current forecast
PCQ
Toss-up
- Probability
- 60%
- Mean margin (pts)
- 4.5
- P(close race)
- 62%
In context
How this riding stacks up
| PCQ | CAQ | PQ | PLQ | |
|---|---|---|---|---|
| HereCôte-du-Sud | 31.3% | 27.6% | 26.7% | 10.4% |
| Provincial averageQuebec | 13.2% +18.2 | 20.3% +7.3 | 30.1% −3.4 | 27.2% −16.8 |
Provincial averages computed across the 127 riding-level projections (unweighted mean).
Projection track
How the projection has moved
Previous election · QC 2022
Detailed result · QC 2022
Candidates and votes
| Candidate | Party | Votes | % | Occupation |
|---|---|---|---|---|
| Mathieu Rivest Elected | CAQ | 16,116 | 47.7 | — |
| Frédéric Poulin | PCQ | 7,910 | 23.4 | — |
| Michel Forget | PQ | 4,316 | 12.8 | — |
| Guillaume Dufour | QS | 3,154 | 9.3 | — |
| Sylvain Lemieux | PLQ | 2,132 | 6.3 | — |
| Sylvain Cloutier | Other | 164 | 0.5 | — |
Around the region
Nearby ridings
Tone only — pick a riding to see the numbers.
- Last model run
- Cycle
qc_2026