Can you name the countries and their capitals of Central Asia? How many nations are there in Central Asia? This geography quiz will evaluate your knowledge about Central Asian countries. Asia is the world's largest and most diverse continent, covering an area of 44,579,000 square kilometers. The Central Asia region (CA) is a subregion of a few countries. Can you name them all? How many countries are there in Central Asia? Let's check all these things with this quiz.