Jamnagar's 2021 population is now estimated at 650,977. In 1950, the population of Jamnagar was 101,828. Jamnagar has grown by 6,239 since 2015, which represents a 0.97% 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 Jamnagar, which typically includes Jamnagar's population in addition to adjacent suburban areas.