Gdansk's 2025 population is now estimated at 465,553. In 1950, the population of Gdansk was 186,189. Gdansk experienced a decrease of -67 residents over the past year, marking an annual decline of -0.01%.These population estimates and projections come from the latest revision of the UN World Urbanization Prospects. These estimates represent the Urban agglomeration of Gdansk, which typically includes Gdansk's population in addition to adjacent suburban areas.