Greenland
The largest country in North America would be Canada.
Greenland.
The northernmost country in North America is geographically Denmark (via Greenland, a Danish territory).
Greenland
Greenland
the least populous country in North America is considered to be Greenland
North America; but Greenland is an autonomous (self governing) area belonging to Denmark, which is in Europe.
The Island country of Greenland, belongs to Denmark.
Greenland is part of North America and is partially ruled by Denmark.
Greenland is part of the North American Plate, so that makes it part of the Continent of North America, although it is considered to be European as it is an autonomous country within the Kingdom of Denmark.
Canada. Or Denmark (if you include the territory of Greenland).