Magnitogorsk's 2025 population is now estimated at 420,923. In 1950, the population of Magnitogorsk was 275,384. Magnitogorsk has grown by 136 in the last year, which represents a 0.03% annual change.These population estimates and projections come from the latest revision of the UN World Urbanization Prospects. These estimates represent the Urban agglomeration of Magnitogorsk, which typically includes Magnitogorsk's population in addition to adjacent suburban areas.