Mumbai Population 2021

20,667,656
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Mumbai's 2021 population is now estimated at 20,667,656. In 1950, the population of Mumbai was 3,088,811. Mumbai has grown by 256,382 since 2015, which represents a 1.26% 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.

Mumbai, also called Bombay, is the capital city of the state of Maharashtra in India, and it's the most populous city in India. Mumbai is 4th most populous city in the world and one of the populous urban regions in the world. The most recent census was conducted in India during 2011, which put Mumbai's Urban Agglomeration at 20,748,395, while the city itself was recorded at 12,478,447. The next national census is scheduled for 2021.

Population Size and City Size

Mumbai's urban population is estimated to be over 22 million, and the densely populated city is the largest in India in terms of population, trade activity and business. The metropolitan area has experienced an explosion in growth over the past 20 years, a common occurrence with metropolitan areas in India. The rapid population growth is attributed to migration from other regions in the country, with migrants seeking business and employment opportunities.

The population of Mumbai has more than doubled since 1991, when the census showed that there were 9.9 million people living in the area. The rapid expansion has led to serious health issues that have to be addressed by the government, and a large percentage of residents live in the city’s slums.

The total surface area that the city of Mumbai covers comes to 603 kilometers squared (233 square miles) in the megacity itself. The major metropolitan area has a total surface area of 4,355 kilometers squared (1,681.5 square miles).

Slums of Mumbai

The percentage of people living in slums is estimated to be as high as 41.3% in Greater Mumbai, meaning that over 9 million people live in these areas. The number of people residing in slums throughout the entire country is estimated to be 104 million, or 9% of the total population of India. Dharavi is the largest slum in Mumbai and the second largest in Asia (after Orangi Town in Pakistan). It is estimated that one million people live in Dharavi, which spans just 535 acres, has a population density of an incredible 869,565 people per square mile. There are approximately 5,000 businesses and 15,000 single-room factories in Dharavi. The slum is the most literate in the country, with a literacy rate of 69%.

Population Density of Mumbai

The population density of Mumbai is approximately 73,000 per square mile, which makes Mumbai one of the most densely populated cities in the world. Because land is at such a premium, residents of Mumbai frequently live in cheap, cramped housing far from work, leading to long commutes on the city’s busy mass transit system.

Mumbai Demographics

Mumbai's demographics relate to us that the city is considered a melting pot due to all of the migrants that relocate to the city for employment opportunities. Mumbai, like most metropolitan areas of India, has a large population of polyglots, and 16 major languages of India are spoken here, including Gujarati, Hindi and Marathi, along with a colloquial form of Hindi called Bambaiya.

Cultural diversity within the city means that there are mixed religions throughout the area, although Hindu is the most practiced religion, with nearly 2 out of 3 Mumbai residents identifying as Hindu. You can see the full data in the Religion section below.

42% of the population is made up of Maharashtrians and Gujaratis account for 19%, while people from other areas of the country account for the rest of the population.

Mumbai's sex ratio is skewed, and a ward-level analysis of the last Census in 2013 found that 20 of the city's 24 municipal wards had a decline in child sex ratio in the past decade. The Worli-Prabhadevi region had the highest drop in child sex ratio. For every 1,000 boys, there are just 899 girls. This gender imbalance is visible throughout Mumbai and is blamed on sex-selective abortions.

Mumbai Population Growth

Mumbai has experienced rapid growth over the past twenty years, which has led to an increased number of residents living in slums and has elevated the growth of its largest slum, Dharavi. The Malad-Dahisar region in the west and the Cembur-Govandi region in the east have grown the fastest, growing between 17 and 20% in the last 10 decades.

The north is growing much more populous as the southern regions become less inhabited, and the fast-growing areas are seeing massive ghettoization as the fastest growth is occurring in the poorest areas.

The Indian government is currently working to boost the population of the Parsi community, as they have the highest literacy rates and sex ratio in India, but their numbers are rapidly declining. Out of 1.2 billion people in India, only 69,000 are Parsis, and their numbers have been declining 12% a decade. Mumbai is still home to the largest Parsis population in the world.

By 2030, Mumbai will have an estimated population of 28 million. These estimates mean that the 6th most populous city in the world would move up the list to become the 4th most populous.

Mumbai Population 2021

Year Population Growth Rate (%) Growth
203527,342,8202.10%562,956
203426,779,8642.14%559,856
203326,220,0082.16%555,608
203225,664,4002.19%549,656
203125,114,7442.21%542,294
203024,572,4502.22%532,546
202924,039,9042.21%519,560
202823,520,3442.18%501,948
202723,018,3962.13%479,132
202622,539,2642.04%450,312
202522,088,9521.92%415,804
202421,673,1481.77%376,632
202321,296,5161.60%335,044
202220,961,4721.42%293,816
202120,667,6561.26%256,382
202020,411,2741.12%226,210
201920,185,0641.03%205,108
201819,979,9561.13%223,908
201719,756,0481.13%221,396
201619,534,6521.13%218,916
201519,315,7361.13%216,462
201419,099,2741.13%214,036
201318,885,2381.13%211,638
201218,673,6001.13%209,266
201118,464,3341.13%206,922
201018,257,4121.13%204,602
200918,052,8101.13%202,034
200817,850,7761.13%200,320
200717,650,4561.13%197,800
200617,452,6561.13%195,584
200517,257,0721.13%193,128
200417,063,9441.13%191,488
200316,872,4561.13%189,083
200216,683,3731.13%186,964
200116,496,4092.17%349,882
200016,146,5272.70%424,376
199915,722,1512.70%412,661
199815,309,4902.70%401,830
199714,907,6602.69%390,752
199614,516,9082.70%381,545
199514,135,3632.70%371,012
199413,764,3512.70%361,275
199313,403,0762.69%351,314
199213,051,7622.70%343,037
199112,708,7252.86%353,635
199012,355,0902.95%353,579
198912,001,5112.94%342,993
198811,658,5182.95%334,097
198711,324,4212.95%324,083
198611,000,3382.95%314,808
198510,685,5302.94%305,384
198410,380,1462.95%297,463
198310,082,6832.95%288,546
19829,794,1372.95%280,289
19819,513,8483.42%314,305
19809,199,5433.67%325,358
19798,874,1853.66%313,427
19788,560,7583.66%302,357
19778,258,4013.66%291,284
19767,967,1173.67%281,771
19757,685,3463.66%271,438
19747,413,9083.66%261,852
19737,152,0563.66%252,262
19726,899,7943.67%244,023
19716,655,7713.79%242,895
19706,412,8763.83%236,532
19696,176,3443.82%227,500
19685,948,8443.84%219,713
19675,729,1313.83%211,312
19665,517,8193.83%203,519
19655,314,3003.82%195,747
19645,118,5533.84%189,047
19634,929,5063.83%181,819
19624,747,6873.83%175,113
19614,572,5743.57%157,670
19604,414,9043.45%147,397
19594,267,5073.45%142,283
19584,125,2243.45%137,539
19573,987,6853.44%132,774
19563,854,9113.45%128,701
19553,726,2103.45%124,235
19543,601,9753.45%120,094
19533,481,8813.44%115,932
19523,365,9493.45%112,377
19513,253,5725.33%164,761
19503,088,8110.00%

Mumbai Population Data (Urban Area)

Religion Persons Percentage
Hindu8,210,89465.99%
Muslims2,568,96420.65%
Buddhist603,8254.85%
Jain509,6394.10%
Christian407,0313.27%
Sikh60,7590.49%
Others49,4390.40%
Not Stated31,8250.26%
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Religion in Mumbai (2011 Census Data)

Name Population 2021 Growth
Delhi31,181,3762.94%
Mumbai20,667,6561.26%
Kolkata14,974,0730.84%
Bangalore12,764,9353.56%
Chennai11,235,0182.41%
Hyderabad10,268,6532.64%
Ahmedabad8,253,2262.40%
Surat7,489,7424.25%
Pune6,807,9842.69%
Jaipur4,007,5052.51%
Lucknow3,764,6192.40%
Kozhikode3,742,1985.25%
Malappuram3,608,9286.42%
Thrissur3,212,6044.71%
Kochi3,193,0293.60%
Kanpur3,153,4250.94%
Indore3,113,4453.21%
Nagpur2,940,4871.63%
Coimbatore2,860,4452.65%
Thiruvananthapuram2,690,7034.10%

Other Cities in India

  1. Press Information Bureau, Government of India
  2. India Census 2011 - Mumbai City Census 2011 data
  3. Municipal Corporation of Greater Mumbai - Mumbai portal with information and data
  4. Mumbai Census Data
  5. 5 Biggest Slums in the World
  6. World Urbanization Prospects - United Nations population estimates and projections of major Urban Agglomerations

Sources