There is a high rate of gun ownership in my house.
As for everyone else, I have no idea. There is no gun registration in the US (except in a few states) and so, as another poster said, the only info is going to be survey based, and we all know how accurate that is. I've seen a wide range of estimates on how many guns there are here and how many people own them. Here are some data from the Brady Campaign website:
http://www.bradycampaign.org/facts/factsheets/?page=firefactsHere are their top bullet points:
* There are approximately 192 million privately owned firearms in the U.S. - 65 million of which are handguns.<1>
*Currently, an estimated 39% of households have a gun, while 24% have a handgun.<2>
*In 1998 alone, licensed firearms dealers sold an estimated 4.4 million guns, 1.7 million of which were handguns.<3> Additionally, it is estimated that 1 to 3 million guns change hands in the secondary market each year, and many of these sales are not regulated.<4>
Just at a gut level, the statistics above seem believable to me.
Those statistics they give have references; you might check on those to see if there is state-by-state information. You might also call them up. They'll either have the data or tell you where to look for it.