People

Ethnic Mongols account for about 85% of the population and consist of Khalkha and other groups, all distinguished primarily by dialects of the Mongol language. Mongol is an Altaic language--from the Altaic Mountains of Central Asia, a language family comprising the Turkic, Tungusic, and Mongolic subfamilies--and is related to Turkic (Uzbek, Turkish, and Kazakh), Korean, and, possibly, Japanese. The Khalkha make up 90% of the ethnic Mongol population. The remaining 10% include Durbet Mongols and others in the north and Dariganga Mongols in the east. Turkic speakers (Kazakhs, Turvins, and Khotans) constitute 7% of Mongolia's population, and the rest are Tungusic-speakers, Chinese, and Russians. Most Russians left the country following the withdrawal of economic aid and collapse of the Soviet Union in 1991.

Age structure:
0-14 years: 26.96% (male 435,596/female 418,524)

15-24 years: 14.93% (male 239,495/female 233,459)

25-54 years: 45.29% (male 694,481/female 740,334)

55-64 years: 8.04% (male 115,560/female 139,129)

65 years and over: 4.78% (2020 est.) (male 60,966/female 90,482)