Sonora, Mexico.
to the north of Washington state is the Canadian province of british Columbia & you could also just say Canada or the Canadian border borders Washington state in the north yet the state of Oregon might also be said to border Washington state in the north in the sense of to its own north to the north of Oregon & it is a peculiarity of English that one cant be positively sure which of these two meanings you have in mind moreover it is a peculiarity of geography that regardless of which way you mean the question the state of Idaho also borders Washington state in the north in a few places due to the sinuosities of the snake river
What state borders to the north of where? There is not enough information.
what state borders montana to the north
It's Utah.
No state. Canada borders Idaho to the north.
Utah
Utah borders the north of Arizona. The states that border Arizona are: California, Nevada, Utah, Colorado, and new Mexico.
The US state which borders North Dakota on the west is Montana.
Oregon borders to the north and Washington is above that.
Tennessee borders Mississippi to the north.
Arkansas borders Louisiana to the north.