This question needs to have more detail because it is not understood by what you mean by land. All states are made of land.
alaska or a northeastern state
utah
Washington DC is in the District of Columbia, which is not a state but land ceded by surrounding states.
Texas is the largest state according to land size.
The most farmed land in the US is in..... the US! Did you mean in which state?
Alaska is the state with the most land.
Maine borders only one state.
california
No state in the US is sovereign.
If you mean in the US, that would be the state of Alaska.
FLORIDA is the only US state made completely from territory purchased from Spain, but parts of Alabama, Mississippi, and Louisiana come from the same chunk of land that the US purchased from Spain when the US purchased Florida.
By land area, the fourth smallest state in the US is New Jersey.