Astoria
the city that is most northern in a country
the northern most city is Barrow, Alaska if not a city then anchorage
The Northern most city in the world is Longyearbyen in Svalbard, Norway. It's a beautiful city.
The most northern city in the world is Honningsvag, in Norway.
Portland.
By road from Astoria Oregon on the northern most boarder to The southern most point is about 375 miles according to our Friends at Google maps As measured in a straight line 360 miles according to our friends at wikipedia
The most northern capital city if Reykjavik, Iceland.
Murmansk
Oregon is in the Northern and Western Hemispheres.
That would be Portland.
The California-Oregon border is the northern most point of California. The city of McDoel is the northern most city.
Salem is the capital city of Oregon.