How many people have guns in US?

Since the Federal government does not require that ordinary guns be registered, nor do most states, there is no way of giving a specific number of gun owners. It is ESTIMATED that about 25-33% of the law abiding adults in the US own at least 1 gun. Numbers will vary depending on location.
There are 90 guns for every 100 people in the US.
39% of households in America have guns.