IIRC, Alaska has the highest rate of private planes per capita of any state in the US and of any place in the world
A big part of it, for those who haven't visited Alaska, is that huge parts of it are so remote that they can't be reached by road. The easiest way to get there is by plane or if it is near water (river or coast), taking a ship (and during the winter, when rivers freeze over, using that to drive to get there).
Thus a lot of people in Alaska fly around. So much so that there is an entire section in flying regulations, [CFR Part 93](https://www.law.cornell.edu/cfr/text/14/part-93
), that deals specifically with Anchorage airspace (and Ketchikan, for that matter) because it is so busy between Anchorage/Ted Stevens International, Merritt Field (one of the busiest general aviation airports), and Elmendorf AFB as well as tons of small dirt strips and even float plane lakes.
Flying out of Elmendorf for an exercise with the F-22's, I'll always remember returning to the field and having my radar out looking for civilian VFR traffic flying around not talking to anyone on the radios. It's really the last frontier out there