There are 109 registered centenarians in Mongolia. National Day of Older Persons and International Day of Older Persons are celebrated on October 1 of each year. The National Statistical Office provided information about the age of the population of the country on the occasion of these days. There are 109 registered centenarians in Mongolia. The oldest citizen of Mongolia is 121 years old.

A total of 9.8 percent of Mongolia’s population were elderly in 2020. But it decreased to 8.6 percent of the population in September, 2023.

According to demographic projections, this figure is expected to reach 19 percent in 2050.