About this Ontario poll from Mainstreet Research
This Ontario poll was fielded by Mainstreet Research in February 2025, with a middle field date of February 13, 2025. The poll collected data from a total sample of n=1,272 Ontario respondents via IVR technology (automated calls).
The margin of error for an online sample is not applicable.
For comparison purposes, a random sample of this size would yield a margin of error [moe] of ±2.7%, 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 (February 2025), the Ontario PC Party is down one point (variation smaller than moe), the Ontario Liberal Party remains stable at 29%, and the Ontario NDP climbs two points from 17% to 19% (variation similar to moe).
You can read more information on this poll here.