Thies's 2025 population is now estimated at 439,644. In 1950, the population of Thies was 30,129. Thies has grown by 14,212 in the last year, which represents a 3.34% 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 Thies, which typically includes Thies's population in addition to adjacent suburban areas.