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.
The only Australian state that does not share a border with South Australia is Tasmania. All mainland states, as well as the Northern Territory, share a border with South Australia. Tasmania, however, is Australia's island state, and it shares both a sea border and a land border with Victoria alone.
New South Wales has the longest land border of any of the Australian states, with a total length of 4635km.
Alaska and Hawaii
Alaska and Hawaii do not border any other state.
Hawaii
Maine.
Many people think the answer to this question is Tasmania, but this is incorrect. All of Australia's states share a border with another state. What most people do not know is that even Tasmania, the island state, shares a land border with Victoria. The border is nothing more than a 0.085 km long rocky outcrop at latitude 39° 12' S known as Boundary Islet.
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.
Alaska and Hawaii are the only two states that do not share a border with another state.
Tasmania has no border with South Australia.
Morris, Somerset
The only state to share a border with all other mainland states in Australia is South Australia. It touches Western Australia on the west, the Northern Territory and part of Queensland on the north, and Queensland, New South Wales, and Victoria on the east.
No, Hawaii does not share a border with any other state. It is located in the Pacific Ocean and is the only state in the United States made up entirely of islands.
the state that shares a border with Russia