Lodz's 2025 population is now estimated at 650,066. In 1950, the population of Lodz was 608,144. Lodz experienced a decrease of -5,234 residents over the past year, marking an annual decline of -0.8%.These population estimates and projections come from the latest revision of the UN World Urbanization Prospects. These estimates represent the Urban agglomeration of Lodz, which typically includes Lodz's population in addition to adjacent suburban areas.