Sandakan's 2026 population is now estimated at 409,917. In 1950, the population of Sandakan was 28,840. Sandakan has grown by 6,482 in the last year, which represents a 1.61% 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 Sandakan, which typically includes Sandakan's population in addition to adjacent suburban areas.