depending on how you count, either WY or TX
No. There is no registration of gun owners
MOST states do not register guns or gun owners.
Since, like most states, Utah does not require registration of guns or gun owners, there is no one source of reliable information on the number of gun owners in Utah. However, some studies indicate that nearly half of the households in Utah own at least one firearm.
Most gun clubs are apolitical
No way to know.
I question this ad the US Census Bureau says that there are only 12,831,970 people in the state.
In the US, roughly 1/3 of the households are gun owners.
Gun owners aren't "registered" like cars. One estimate is that there are @ 4 million or so gun owners.
Any number put here will not remain accurate, as anyone can register a gun in Oregon at any time.
Roughly 1.4 million LEGAL gun owners.
Probably Texas
Most lenient would be South Dakota. Most stringent would be Washington, D.C.