Ondo's 2025 population is now estimated at 509,723. In 1950, the population of Ondo was 31,131. Ondo has grown by 17,770 in the last year, which represents a 3.61% 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 Ondo, which typically includes Ondo's population in addition to adjacent suburban areas.