This article on the demographics of Mongolia include population density, ethnicity, education level, health of the populace, economic status, religious affiliations, and other aspects of the population.

Youth in Mongolia constituted 18.7% of the population in 2014, numbering roughly 552,000 individuals. The 15–19 age group is the largest in Mongolia; in 2009 about 40% of the population was under 19 years old. Estimated population growth rates as of 2014 were reported as increasing by 1.37%. The steady increase in youth will enlarge the already large proportion of working-aged individuals and create new opportunities to build human capital and facilitate economic development.