Been digging into maps again. One thing led to another and I was on the Wiki page for the Bureau of Land Management (BLM, lolz). There was a map there with various areas colored, basically land owned by various government agencies one of which was the BLM. So I thought, what if I knocked out all that land, we could see the actual amount of ownable land in the US. Now this doesn't include things like State or County Parks, but you get the idea.
The interesting bit is the west is mostly not-ownable. I think this was what the yahoo's in Nevada were pissing about with grazing on BLM land. Nevada barely exists in this image.
The other interesting part is there is very little government owned land in the rust belt, and zero in Iowa.
I always kinda felt that population growth in the US wouldn't be a problem since there was lots of land out west for people to move to. And while that's true since there aren't may people who live out there, it's also somewhat untrue because so much of it is simply not ownable by anyone.