The country north of Washington state is Canada! The province of Canada above Washington is British Columbia. Vancouver is extremely close to the border.
Canada
The Canadian province of British Columbia borders Washington to the north.
Oregon borders to the north and Washington is above that.
Washington state borders Oregon on the north. And Alaska is physically north of Oregon.
Congo borders Zambia in the north.
There is no country north of Canada
Maryland. Montgomery County borders DC on the North and Northeast. PG County borders DC on the east and southeast.
The country which borders Togo (Togolese Republic) to the north is Burkina Faso.
The country that borders Angola to the north is DR Congo. Its capital is Kinshasa.
Estonia.Estonia
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
Canada borders the north of the US.
Washington State borders two US States: to the south is Oregon, Idaho is to the east. The country of CANADA , specifically, the Provence of British Columbia is to the north and The Pacific Ocean is to the west.