South Australia borders the most states and territories in Australia.
South Australia shares borders with Western Australia, the Northern Territory, Queensland, New South Wales and Victoria.
There is no Australian state which shares a border with all other states. No state except for Victoria shares a land border with Tasmania. South Australia shares a border with all mainland states and the Northern Territory.
Hawaii is a state in the United States that does not touch or border another state. It is located in the Pacific Ocean and consists of a group of islands.
The question does not make sense. All of the states of Australia share a border with another state. Even Tasmania, the island state, shares an actual land border as well as a water border with another state.
Columbus is entirely within Ohio. It does not border any other state.
Alaska and Hawaii do not border any other state.
The state of Hawaii has no common border with any other state or country, as it is located in the middle of the Pacific Ocean.
All states but Alaska and Hawaii border at least one other state. Maine is the only state to border just one state.
Maine, it shares a border with Vermont.
Only Alaska and Hawaii do not share borders with other US states. Every other state shares a border with at least one other state.
Maine.
Alaska
Hawaii