Delhi Population 2021

31,181,376
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Delhi's 2021 population is now estimated at 31,181,376. In 1950, the population of Delhi was 1,369,369. Delhi has grown by 890,440 since 2015, which represents a 2.94% 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 Delhi, which typically includes Delhi's population in addition to adjacent suburban areas.

Delhi, or the National Capital Territory (NCT) of India, is a large metropolitan area in India. Delhi is the fifth most populous city in the world and the largest city in India area-wise. Delhi has an estimated 2016 population of 18.6 million.

The NCT and its urban area are granted the special status of National Capital Region, and this NCR includes neighboring cities of Baghpat, Alwar, Sonepat, Gurgaon, Ghaziabad, Faridabad, Greater Noida, Noida, and nearby towns. The NCR has an estimated population of 24 million, exceeding the Delhi population of 17.8 million in 2014.

Delhi has a rapidly growing population, which was near 16.7 million in 2011.

City Size and Population Density

Delhi covers a large area, totaling around 1,484 square kilometers. The city has a population density of 29,259.12 people per square mile, which is one of the highest in the world.

Delhi Demographics

The largest ethnic group is Indo-Aryan (72%), followed by Dravidian (25%), then Mongoloid and other groups (3%), as of 2000. Delhi has a skewed female-to-male ratio, with 866 women for every 1,000 men. The city has a literacy rate of 86% (91% for men and 81% for women). Hindi is the most commonly spoken language (81%), followed by Punjabi (7%) and Urdu (6%). Nearly 82% of the population practices Hinduism, while 12.86% practices Islam. Christianity accounts for 0.87% of the population, while Buddhism accounts for just 0.11%.

Delhi History

Delhi has been continuously inhabited since at least the 6th century, and it has been the capital of many empires and kingdoms over its history. It has also been captured, destroyed and rebuilt numerous times. It was the site of Indraprastha, the mythical capital of the Pandavas, and it became a major trade route between the Gangetic plain and northwest India during the time of the Delhi sultans. In 1639, the walled city of Shahjahanabad was built in Delhi to serve as the capital of the Mughal Empire until 1857. Today, Shahjahanabad is in Old Delhi.

In 1911, the British decided to change the capital of India to Delhi from Calcutta, and New Delhi was built in 1912 south of the old city. Today, New Delhi is part of the larger city of Delhi, and New Delhi is the capital of India.

Delhi Population Growth

Delhi is one of the fastest growing cities in the world, reaching over 18 million this year from just 400,000 in 1901. In 2001 alone, its population increased by 215,000 due to natural growth and 285,000 through migration. By 2020, Delhi is expected to be the third largest conurbation after Tokyo and Mumbai.

Delhi struggles with its rapid growth and is facing substantial pressure to improve commercial and residential infrastructure.

Delhi Population 2021

Year Population Growth Rate (%) Growth
203543,345,0602.10%892,612
203442,452,4482.14%888,088
203341,564,3602.17%882,344
203240,682,0162.20%875,164
203139,806,8522.23%868,156
203038,938,6962.26%861,456
202938,077,2402.30%855,960
202837,221,2802.34%851,968
202736,369,3122.40%850,892
202635,518,4202.46%852,852
202534,665,5682.54%858,164
202433,807,4042.63%866,096
202332,941,3082.73%875,548
202232,065,7602.84%884,384
202131,181,3762.94%890,440
202030,290,9363.03%891,796
201929,399,1403.11%885,458
201828,513,6823.30%911,426
201727,602,2563.30%882,292
201626,719,9643.30%854,088
201525,865,8763.30%826,790
201425,039,0863.30%800,362
201324,238,7243.30%774,776
201223,463,9483.30%750,014
201122,713,9343.30%726,038
201021,987,8963.30%702,832
200921,285,0643.30%679,444
200820,605,6203.31%659,538
200719,946,0823.30%637,566
200619,308,5163.30%617,186
200518,691,3303.30%596,648
200418,094,6823.31%579,170
200317,515,5123.30%559,874
200216,955,6383.30%541,978
200116,413,6604.60%721,761
200015,691,8995.28%786,386
199914,905,5135.27%745,976
199814,159,5375.27%708,641
199713,450,8965.26%672,273
199612,778,6235.28%640,390
199512,138,2335.27%607,481
199411,530,7525.27%577,079
199310,953,6735.26%547,463
199210,406,2105.28%521,498
19919,884,7125.33%500,503
19909,384,2095.37%477,961
19898,906,2485.36%453,008
19888,453,2405.37%431,121
19878,022,1195.37%408,586
19867,613,5335.37%387,775
19857,225,7585.36%367,532
19846,858,2265.37%349,774
19836,508,4525.37%331,491
19826,176,9615.37%314,608
19815,862,3534.93%275,339
19805,587,0144.73%252,098
19795,334,9164.72%240,399
19785,094,5174.72%229,566
19774,864,9514.71%218,927
19764,646,0244.73%209,639
19754,436,3854.72%199,910
19744,236,4754.72%190,901
19734,045,5744.71%182,055
19723,863,5194.73%174,330
19713,689,1894.49%158,496
19703,530,6934.41%149,222
19693,381,4714.41%142,722
19683,238,7494.42%137,068
19673,101,6814.41%131,090
19662,970,5914.41%125,549
19652,845,0424.41%120,081
19642,724,9614.42%115,324
19632,609,6374.41%110,294
19622,499,3434.41%105,633
19612,393,7104.85%110,748
19602,282,9625.09%110,569
19592,172,3935.08%105,072
19582,067,3215.08%99,991
19571,967,3305.08%95,026
19561,872,3045.09%90,680
19551,781,6245.08%86,172
19541,695,4525.08%82,004
19531,613,4485.08%77,933
19521,535,5155.09%74,368
19511,461,1476.70%91,778
19501,369,3690.00%

Delhi Population Data (Urban Area)

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. India Census 2011 - Population census 2011 conducted by the Census Organization of India
  2. India Census 2011 - Delhi - Delhi population census data 2011
  3. World Urbanization Prospects - United Nations population estimates and projections of major Urban Agglomerations

Sources