data mongolia 2023This report covers observance of the SDDS undertakings by Mongolia in 2025, in the four dimensions of the SDDS, as set forth in the SDDS legal text: access by the public—availabilityIn Mongolia, the current population is 3,431,932 as of 2025 with a projected increase of 31% to 4,501,493 by 2050. Population growth rate. Mongolia, 2025.