With Mexico:
Texas, New Mexico, Arizona and California.
With Canada:
Alaska
Washington
Idaho
Montana
Minnesota
New York
Vermont
Maine
Canada or Mexico
The states that have a land border with another country are Alaska (Canada), Maine (Canada), Washington (Canada), Michigan (Canada), Minnesota (Canada), North Dakota (Canada), Montana (Canada), New York (Canada), Vermont (Canada), New Hampshire (Canada), Arizona (Mexico), California (Mexico), New Mexico (Mexico), and Texas (Mexico).
Washington State, Idaho, Montana, North Dakota, Minnesota, New York, Vermont, New Hampshire, Alaska and Maine all have land border with another country
The country immediately south of Canada, which contains the Northwest Territories, is the United States. The border between Canada and the United States is the longest international land border in the world.
Germany has a land border with Denmark.
13 states border Canada (4 by land, 3 by water*, 6 by both land and water+)Maine+, New Hampshire+, Vermont+, New York+, Pennsylvania*, Ohio*, Michigan*, Minnesota+, North Dakota, Montana, Idaho, Washington+, and Alaska.4 states border Mexico (1 by water*, 3 by land)California, Arizona, New Mexico, and Texas*.Florida shares a disputed claim of territorial water border with The Bahamas and Cuba.
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 country that borders Canada on land is the United States. American states that border Canada on land include Washington, Idaho, Montana, North Dakota, Minnesota, Michigan, New York, Vermont, New Hampshire, and Maine.
The Following States border CanadaMaineNew HampshireVermontNew York (Land and Water Border)Pennsylvania (via Lake Erie),Ohio (via Lake Erie),Michigan (Detroit River, Lake Huron, Lake Superior)MinnesotaNorth DakotaMontanaIdahoWashingtonAlaskaThe Following States border MexicoTexasNew MexicoArizonaCaliforniaBorder RussiaAlaska (Via Bearing Strait)The BahamasFlorida (via Florida Straits)
There are two: Hawaii and Alaska. Neither shares a land border with any other US state.
The only country Denmark has a land border with is Germany to the south.
Not in land border but in water border, yes.