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.
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.
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.
Hawai'i
Tasmania has no border with South Australia.
alaska & hawaii
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.
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.
Poeppel Corner is where the borders of the Northern Territory, South Australia and Queenslandmeet.
The state of New South Wales in Australia is bordered by Queensland on the North, South Australia on the West, and Victoria to the South.
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.
Hawaii.