Initially my search had an acre as the minimum lot size. There are probably much better deals in Montana than what I saw. Same for Texas.
The issue in Texas is it takes forever to get anywhere from those river front and lake communities. Not a problem if you're remote, bit of a drag if you work in Austin.
865k Texas - https://redf.in/ubeUye
590k California - https://redf.in/bYUSU3
I could do this all day, I enjoy it.