I guess a state with “strong Canadian influence” is any one that has more Tim Horton’s than Starbucks, eh?
But as an alternative index of Canadian cultural penetration, I'd accept a ratio >1.0 of Molson's + Labatt's stacked in the grocery's mass display, to the sum of Bud + Miller Lite.
How 'bout that? ;)
Here in Texas, it's [Corona + Tecate]/ [Miller Lite + Shiner].