Cheboksary's 2025 population is now estimated at 517,136. In 1950, the population of Cheboksary was 58,990. Cheboksary has grown by 1,366 in the last year, which represents a 0.26% 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 Cheboksary, which typically includes Cheboksary's population in addition to adjacent suburban areas.