Mykolaiv's 2021 population is now estimated at 482,873. In 1950, the population of Mykolaiv was 168,314. Mykolaiv has grown by -1,786 since 2015, which represents a -0.37% 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 Mykolaiv, which typically includes Mykolaiv's population in addition to adjacent suburban areas.