Mongolia Population 2021 (Demographics, Maps, Graphs)
Mongolia Area and Population Density. The vast East Asian country of Mongolia shares its borders with China and Russia and covers 604,600 square miles (1,566,000 square kilometers) of area, which ranks 18 th in the world in terms of size. According to data from the CIA World Factbook, Mongolia had a population of 3,171,860 as of 2019, which is a very small figure considering the countries size.