About this Quebec poll from Mainstreet Research
This Quebec poll was fielded by Mainstreet Research in June 2025, with a middle field date of June 22, 2025. The poll collected data from a total sample of n=910 Quebec respondents via IVR technology (automated calls).
The margin of error [moe] for this poll is estimated at ±3.2%, 19 times out of 20 (for entire sample only) around the 50%-mark.
The regional breakdown of this poll was not made publicly available.
If we compare these national numbers with the previous poll from Mainstreet Research (October 2022), the Parti Québécois climbs 17 points from 14% to 31%, the Liberal Party climbs 14 points from 15% to 29%, and the Coalition avenir Québec loses 25 points from 41% to 16%.
You can read more information on this poll here.