Here are the means from a recent survey we did by region (respondents were asked to rank how liberal or conservative they were one a scale from 1 to 7)
BC: 3.57
AB: 4.41
SK: 4.28
MB: 3.82
ON: 3.55
QC: 3.52
Atl: 3.52
Now, this is really only a determiner of how conservative each province is. It's clear from the partisan means that Liberals were selecting lower numbers than New Democrats. If it were a survey where I wrote the questions, I would have used the term 'progressive' rather than liberal.
From the same survey, we did an openness index (my boss has a huge interest in this measurement), which basically measures authoritarian tendencies. The lower the number, the more authoritarian the respondent. Here are the provincial means:
BC 5.90
AB 5.39
SK 4.59
MB 5.26
ON 5.83
QC 5.63
Atl 6.09
Atlantic Canada lives up to its reputation as being a very friendly place. No surprise, Quebec doesn't fair well there.
Were the sample sizes large enough to see a division in provinces between supporters of one party and supporters of another? I know that in the US this can make a difference, with e. g. Oregon coming out fairly centrist overall, but with its Democrats tending to be very liberal and its Republicans to be very conservative, and I could see something similar occurring with BC.
Yes, BC is very polarized. The Liberals and NDP have been within 5 points of each other in every provincial election since 2005.
BC combines some of the most left wing voters (downtown Victoria, east Vancouver) with some of the most right wing voters (Interior + Okanagan) in Canada. The province as a whole has swung left because the most left wing parts of the province have grown disproportionately ever since American tariffs and pine beetles decimated the logging industry. That lumberjacks were once the core of BC NDP support says a lot about how different the province was forty years ago.
