Drill down to state levels, or further to local areas, and those numbers change tremendously. In many parts of the country gun ownership is almost universal.

And you might not even know; not everyone tells everyone that they own a gun.

Assume those numbers are wrong. Many gun owners lie on various polls and surveys when asked about firearms ownership. The reason generally being a certain level of paranoia about firearms and firearms owners being cataloged in a way that could support a hypothetical future confiscation effort.

Firearms owners may well still be in the minority, but there's probably a fair bit of error there.

Does that include children in the population?