You'll have to add Portland and Seattle to that list as well as any city with a large university. If there is a large community of cyclists, there will be bike thieves working hard to separate them from their bikes.
I will grant you by virtue of there being more people in California and New York City, there will be more of everything. But for there to be $350,000,000 US worth of bicycles stolen every year (estimate is old) the problem is more common than you might think.
https://priceonomics.com/post/30393216796/what-happens-to-st...
I have some friends in San Diego and they had department store bikes not visible from the street in a fenced in carport and they were stolen so now they lock their replacement bikes up and painted them to look like junk.