Darbhanga's 2025 population is now estimated at 382,707. In 1950, the population of Darbhanga was 83,675. Darbhanga has grown by 7,514 in the last year, which represents a 2% 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 Darbhanga, which typically includes Darbhanga's population in addition to adjacent suburban areas.