Find out the projected population of Mumbai District in 2025 based on the 2011 census data. See the religion, literacy, urban, rural, and historical population trends of Mumbai District. Chart and table of population level and growth rate for the Mumbai , India metro area from 1950 to 2025. Mumbai 's 2025 population is now estimated at 22,089,000. In 1950, the population of Mumbai was 3,088,810. Mumbai has grown by 415,900 in the last year, which represents a 1.92% 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 Mumbai , which typically includes Mumbai 's population in addition to adjacent suburban areas. The population of Mumbai (City of India) is about 22,5 million in 2025. It is the 9th most populous city in the world.