About this British Columbia poll from Mainstreet Research
This British Columbia poll was fielded by Mainstreet Research in December 2025, with a middle field date of December 18, 2025. The poll collected data from a total sample of n=1,902 British Columbia respondents via IVR technology (automated calls).
The margin of error [moe] for this poll is estimated at ±2.2%, 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 (June 2025), the BC Conservative PC Party loses two points from 44% to 42% (variation similar to moe), the BC NDP remains stable at 41%, and the Green Party climbs three points from 7% to 10%.
You can read more information on this poll here.