San Diego was far more different than Austin, TX, and considerably different than Ithaca, NY.
I'm still legally a WA resident, and having done a lot of time around Seattle, Everett, Bellingham, and Vancouver, I can tell you there are a lot of similarities. Seattle doesn't have the Aberdeen Mall, but in terms of attitude there isn't anything you can't find in Seattle.
Once you get out of the city, guns, religion, and skepticism of the urbanites is just as common as in the US -- standard Urban-Rural divide. Hell, even the "fly-over" provinces are conservative, just like in the US.
I have lived in Alberta for over ten years, and though culturally distinct from the rest of Canada (as is every other province I've spent time in) Alberta's brand of rugged individualist / conservatism is still very Canadian.
And though we may look very different to the urbanites of GVRD (Vancouver and surrounding) and the GTA (Toronto and surrounding), you'll find many more similarities between us and those living in rural Canada with resource-based economies, like the people living in B.C.'s forestry-dependent areas, the northern prairies or NorthWest Ontario. The difference for us is that we have very vocal, oil-industry-controlled politicians and a population that is immediately suspicious of any time an easterner tries to tell us what to do.
Sometimes the easiest way to see our distinctiveness is by contrast - immediately evident when crossing over to even the closest border states.
I love Montana and its people, but boy do you know you're not in Canada anymore - roadways lined with advertisements; cops everywhere you look; huge rich/poor divides; razor wire, visible drug problems and ghettos in even the smallest cities; and a love of all things military.
All that to say, there's far more to being Albertan than oil, guns and god, and those three things don't make us a 'murican.
Vancouver is especially different from the rest of canada than most canadian cities. Its like using Portland to characterize the entirety of America.
Lol. Maybe a similar culture to some parts of California or Washington, and that is a stretch, but Vancouver is very very different than "the United States". Live in both for a while and all the little difference (the guns, health care, government, police, civil-military relations, the environment, land use, education etc) add up to markedly different approaches to life.