Free land can be found in Several States although to get free land you must usually build a new home on that free land in a certain amount of time.
And usually the towns and states giving away the free land don't allow mobile homes, campers or tents except to maybe be temporarily lived in while building the site built home.
Some states that give away free land are.
Marne, Iowa.
Flagler, Colorado.
Marquette, Kansas.
Lincoln, Kansas.
New Richland, Minnesota.
The State of Michigan.
The State of Alaska.