Continents of the World's Four Largest Countries

Ranking by Total Area

Rank	Country	Area (km²)	Continent(s)
1	Russia	17,098,246	Europe & Asia (Ural divide; 77% Asia, 23% Europe by land)
2	Canada	9,984,670	North America
3	China	9,596,961	Asia
4	United States	9,525,067	North America

Russia is the only transcontinental country in the top 4; its European portion (west of Urals) holds ~75% of its population.
Canada & USA share the North American continent; China dominates East Asia.
If counting contiguous land only, China edges out the US for #3.