The US State of Illinois and the US State of Kentucky share a border with the Ohio River that runs between the two States. There is no land border with each other.
Alaska and Hawaii do not share a land border with any other US state.Alaska and Hawai'i
North America and South America share a land border with the United States.
Hawaii is the only state out of the 50 US states that does not share a border with any other state.
Alaska
Hawaii
Mexico and Canada
No they share border between washigton and orgen state (columbia)
russia is the closest country and it does not touch the border of the US!!! :)
Maine.
No US State has a border with Alaska but two Canadian Provinces, British Columbia and the Yukon Territory share a common border with the State.
Alaska