I guess that Hawaii is the exception that proves the rule.
Actually there were some other statistics a while back that used gun ownership rates per household rather than per adult and Hawaii ranked pretty low on that one. I’m not exactly sure how they calculated household though, so that would be something to look into. Part of the weirdness about gun stats is that the rate of gun ownership is trending downward at the same time the number of guns is going up, because while fewer people have guns, those that have them have more of them.