World Population milestones - wikipedia World Population milestones Estimated and projected populations of the world and its inhabited continents from 1950. The shaded regions correspond to range of projections by the United Nations Department of Economic and Social Affairs ; for example, it estimates that the world population will reach 8 billion between 2022 and 2035. World population milestones were unnoticed until the 20th century, since there were no reliable data on global population dynamics. It is estimated that the population of the world reached one billion for the first time in 1804. It would be another 123 years before it reached two billion in 1927, but it took only 33 years to rise by another billion people, reaching three billion in 1960. Thereafter, the global population reached four billion in 1974, five billion in 1987, six billion in 1999 and, by some estimates, seven billion in October 2011 with other estimates being in March 2012. It is projected to reach eight billion by 2024 -- 2030. According to current projections, the world 's population is likely to reach around nine billion by 2035 -- 2050, with alternative scenarios ranging from a low of 7.4 billion to a high of more than 10.6 billion. Projected figures vary depending on underlying statistical assumptions and which variables are manipulated in projection calculations, especially the fertility variable. Long - range predictions to 2150 range from a population decline to 3.2 billion in the ' low scenario ', to ' high scenarios ' of 24.8 billion. One scenario predicts a massive increase to 256 billion by 2150, assuming fertility remains at 1995 levels. World population milestones in billions Population 6 7 8 9 Year 1804 1927 1959 1999 2011 2026 2042 Years elapsed -- -- 123 32 15 13 12 12 15 16 Contents 1 Global billionth milestones 1.1 Five billion 1.2 Six billion 1.3 Seven billion 2 National and regional population 3 See also 4 References Global billionth milestones There is no estimation for the exact day or month the world 's population surpassed each of the one and two billion marks. The days of three and four billion were not officially noted, but the International Database of the United States Census Bureau places them in July 1959 and April 1974. Five billion The Day of Five Billion, 11 July 1987, was designated by the United Nations Population Fund as the approximate day on which world population reached five billion. Matej Gašpar from Zagreb, Croatia ( then SR Croatia, SFR Yugoslavia ), was chosen as the symbolic 5 - billionth person concurrently alive on Earth. The honor went to Zagreb because the 1987 Summer Universiade was taking place in the city at the time. Six billion The United Nations Population Fund designated 12 October 1999 as the approximate day on which the world population reached six billion. It was officially designated The Day of Six Billion. Demographers do not universally accept this date as being exact. In fact there has been subsequent research which places the day of six billion nearer to 18 June or 19 June 1999. The International Programs division of the United States Census Bureau estimated that the world population reached six billion on 21 April 1999. United Nations Population Fund spokesman Omar Gharzeddine disputed the date of the Day of Six Billion by stating, `` The U.N. marked the ' 6 billionth ' ( person ) in 1999, and then a couple of years later the Population Division itself reassessed its calculations and said, actually, no, it was in 1998. '' On the Day of Six Billion, UN Secretary - General Kofi Annan was in Sarajevo, Bosnia and Herzegovina to monitor the Dayton Agreement. At midnight he went to Koševo Hospital, where Adnan Mević, born at 12.01 am, was named the symbolic 6 billionth concurrently alive person on Earth. He is the first son of Fatima Mevic and Jasminko Mevic and weighed 3.5 kg. Seven billion Main article : Day of Seven Billion The `` Day of Seven Billion '' was targeted by the United States Census Bureau to be in March 2012, while the Population Division of the United Nations suggested 31 October 2011, and the latter date was officially designated by the United Nations Population Fund ( UNFPA ) as the approximate day on which the world 's population reached seven billion people. United Nations Secretary General Ban Ki - moon spoke at the United Nations building in New York City on this milestone in the size of world population, and promoted the website 7 Billion Actions. Ban Ki - moon did not choose a symbolic seven billionth baby, but several groups proposed candidates : Nargis Kumar of Uttar Pradesh, India, Danica May Camacho of Manila, Philippines and Wattalage Muthumai of Colombo, Sri Lanka. National and regional Population National or subnational governments have sometimes made similar designations based on the date estimated by a demographic agency. Some national milestones relate to citizens rather than residents. Commentators in countries with high immigration have pointed out that a population milestone may be reached by an immigrant rather than natural increase. This list is incomplete ; you can help by expanding it. Country / nationality Population Born ( date ) Name and surname Notes Foot - notes Munich 1m 15 December 1957 Thomas Seehaus Awarded by Mayor Thomas Wimmer with a 1,000 mark savings account. United States 200m 20 November 1967 Robert Ken Woo Jr Named by Life magazine, not the government. None named for 300m. Australia 15m 29 January 1982 Sally Hodgson Awarded by Minister for Immigration and Ethnic Affairs Ian Macphee Indonesia 200m 4 February 1997 Wahyu Nusantara Aji Complains that government promises of support were not kept India 1b 11 May 2000 Aastha Arora speculation re Independence Day 1999 till Registrar demurred. Complains that government promises of support were not kept. Kyrgyzstan 5m 27 August 2002 Tynchtykbek Kuramayev Australia 21m 29 June 2007 Mia Ruby Templeton Awarded by Treasurer Peter Costello Taiwan 23m 17 July 2008 Wu Cheng - en certificate from Premier of the Republic of China Liu Chao - shiuan Auckland Region, New Zealand 1.5 m 1 February 2012 Ramonah Patience Toomalatai Welcomed by Len Brown the Mayor of Auckland Kazakhstan 17m 17 May 2013 Altynbek Eskaraev Алтынбек Ескараев Vietnam 90m 1 November 2013 Nguyễn Thị Thùy Dung randomly chosen by the General Office of Population and Family Planning from among two dozen babies born that day Philippines 100m 27 July 2014 Chonalyn Sentino Wake County, North Carolina 1m 22 August 2014 Anderson Grace Hughes Offered full scholarship by Wake Technical Community College Mongolia 3m 24 January 2015 Mongoljin Khatanbold Silicon Valley 3m 5 May 2015 Max Danner Utah 3m 24 October 2015 Sadie Christensen By governor Gary Herbert Kyrgyzstan 6m 27 November 2015 Aylin Kojosheva See also U.S. and World Population Clock World population # History World population estimates References Jump up ^ World Population Prospects, the 2010 Revision Jump up ^ Vaclav Smil, `` Global Population : Milestones, Hopes, and Concerns '', Medicine & Global Survival, October 1998 ; Vol. 5, No. 2, 105 -- 108 Jump up ^ `` Population seven billion : UN sets out challenges ''. BBC. 26 October 2011. Retrieved 2011 - 10 - 27. Jump up ^ `` Ch. 5 : Population Size and Composition ''. World Population Prospects, the 2000 Revision ( PDF ). Vol. III. United Nations Population Division. p. 171. Retrieved 3 July 2010. `` Executive Summary ''. World Population Prospects : The 2002 Revision Volume III : Analytical Report ( PDF ). 2002. Retrieved 3 July 2010. `` World Population to 2300 '' ( PDF ). New York : United Nations Department of Economic and Social Affairs : Population Division. 2004 : 3, 14. Retrieved 3 July 2010. `` World Population : 1950 -- 2050 ''. U.S. Census Bureau, Population Division. June 2010. Retrieved 3 July 2010. `` 2009 World Population Data Sheet '' ( PDF ). Washington, DC : Population Reference Bureau. 2009. Retrieved 3 July 2010. Jump up ^ `` Key Findings ''. Long - Range Population Projections ( PDF ). Proceedings of the United Nations Technical Working Group on Long - Range Population Projections. New York : United Nations : Department of Economic and Social Affairs. 2003. Retrieved 3 July 2010. Jump up ^ Ankica Barbir - Mladinović ( 19 July 2011 ). `` Petomilijarditi `` Zemljanin '' : Ne slušati stereotipe '' ( in Croatian ). Radio Free Europe. Retrieved 1 October 2011. Jump up ^ `` And Baby Makes Five billion : U.N. Hails a Yugoslav Infant ''. New York Times. 12 July 1987. Retrieved 1 October 2011. ^ Jump up to : Edith M. Lederer ( 12 October 1999 ). `` World Population Hits 6 billion ''. The Washington Post. Retrieved 12 October 2010. Jump up ^ `` Population Clock ''. Jump up ^ Alan Boyle, Science Editor, NBC News ( 2011 - 10 - 28 ). `` Cosmic Log -- 7 billion people ? How do they know ? ''. Cosmiclog.msnbc.msn.com. Retrieved 2013 - 10 - 31. CS1 maint : Multiple names : authors list ( link ) ^ Jump up to : `` The Secretary - General, in two - day stopover in Sarajevo, confers with local leaders, United Nations Representative ''. United Nations. 12 October 1999. pp. SG / T / 2204. Retrieved 2 May 2012. ^ Jump up to : World UN chief welcomes six billionth baby Jump up ^ `` U.S. Census Bureau -- World POPClock Projection ''. Retrieved 2011 - 10 - 27. Jump up ^ World Population Prospects, the 2008 Revision Frequently Asked Questions Population Division of the Department of Economic and Social Affairs of the United Nations Secretariat, updated 10 November 2010. Retrieved 26 January 2011. Jump up ^ World Population Prospects, the 2008 Revision Frequently Asked Questions Population Division of the Department of Economic and Social Affairs of the United Nations Secretariat updated 10 November 2010. Retrieved 26 January 2011 Jump up ^ `` Day of 7 Billion ''. UNFPA. Retrieved 16 October 2011. Jump up ^ `` About 7 Billion Actions ''. 7 Billion Actions. Retrieved 16 October 2011. Jump up ^ `` India welcomes ' world 's seven billionth baby ' ''. BBC News. 31 October 2011. Retrieved 31 October 2011. Jump up ^ Coleman, Jasmine ( 2011 - 10 - 31 ). `` World 's ' seven billionth baby ' is born ''. London : The Guardian. Retrieved 2011 - 10 - 31. Jump up ^ `` Seven billionth child born in SL Caption Story ''. Dailymirror.lk. 2011 - 10 - 31. Retrieved 2012 - 10 - 05. Jump up ^ `` Australia 's population hits 24 million people, ABS clock shows ''. ABC Online. Australian Broadcasting Corporation. 2016 - 02 - 16. Retrieved 6 April 2016. The ABS said it was unclear whether the 24 millionth Australian was a newborn or a migrant Jump up ^ `` Baby Reed is one in 23 million as Australia 's population hits a milestone ''. The Daily Telegraph. Sydney, Australia. Retrieved 6 April 2016. He said the 23rd millionth person could be a newborn but could equally be a person coming to work in Australia or a returning backpacker who had been away for more than a year. Jump up ^ `` Das Millionerl ''. Der Tagesspiegel ( in German ). Retrieved 14 June 2017. Jump up ^ `` Time to forget Robert Woo '', Chicago Tribune, September 27, 2006 Jump up ^ `` US population reaches 300 million ''. BBC Online. Retrieved 6 April 2016. Jump up ^ `` 28 Apr 1982 - Meet Sally Hodgson, millionth Australian - Trove ''. Retrieved 6 April 2016. Jump up ^ `` Wahyu Nusantara Aji : The forgotten 200 millionth citizen ''. The Jakarta Post. Archived from the original on 23 September 2008. Retrieved 6 April 2016. Jump up ^ `` Aastha, India 's billionth baby ''. Hindustan Times. Retrieved 6 April 2016. Jump up ^ Drèze, Jean ; Sen, Amartya ( 2002 ). India : Development and Participation. Oxford University Press. p. 189. ISBN 9780199257485. Retrieved 6 April 2016. Jump up ^ `` Billionth Indian due tomorrow ''. The Independent. Retrieved 6 April 2016. Jump up ^ `` 13 Yo 5 Millionth Citizen of Kyrgyzstan to Partake in Celebrations in Honor 6 Millionth Citizen - November 11, 2015 - Central Asian News Services - Books and Journals - VLEX 586835174 ''. Retrieved 6 April 2016. Jump up ^ `` Costello hands 21 - millionth baby mantle to Mia ''. Retrieved 6 April 2016. Jump up ^ `` Taiwan Premier Liu Chao - shiuan, gives a citizen certificate to the... Pictures ''. Getty Images. Retrieved 6 April 2016. Jump up ^ `` Auckland Welcomes Its 1.5 Millionth Citizen ''. The Devonport Speculator. Retrieved 6 April 2016. Jump up ^ Zagidullin, Rashit ; Zagidullina, Aliya. `` Shifting Paradigms : Language Learning in Kazakhstan '' ( PDF ). The European Conference on Language Learning 2013. Official Conference Proceedings 2013. Retrieved 6 April 2016. Jump up ^ `` 17 - миллионному казахстанцу подарили скакуна - Новости Общества - Новости Mail.Ru ''. Mail.Ru ( in Russian ). Retrieved 6 April 2016. Jump up ^ `` Population hits 90 mln but can Vietnam take care of its children ? ''. Thanh Nien Daily. Retrieved 6 April 2016. Jump up ^ `` Nguyễn Thị Thùy Dung - công dân thứ 90 triệu của Việt Nam ''. Thanh Niên ( in Vietnamese ). Retrieved 6 April 2016. Jump up ^ `` Les Philippines comptent désormais cent millions d'habitants - Asie - Pacifique - RFI ''. Retrieved 6 April 2016. Jump up ^ Hoyle, Amanda ( Aug 22, 2014 ). `` Full scholarship awarded to Wake County baby named 1 millionth resident ''. Triangle Business Journal. American City Business Journals. Retrieved 6 April 2016. Jump up ^ `` MONGOLIA WELCOMED HER 3 - MILLIONTH CITIZEN ''. president.mn. 2015 - 01 - 28. Retrieved 6 April 2016. Jump up ^ `` A NAME `` MONGOLJIN '' WAS GIVEN TO THE 3 - MILLIONTH CITIZEN OF MONGOLIA ``. PRESIDENT.MN. 2015 - 01 - 28. Retrieved 6 April 2016. Jump up ^ `` Newborn Max Danner is Silicon Valley 's three millionth resident ''. abc7news.com. Retrieved 6 April 2016. Jump up ^ `` Utah celebrates 3 million residents ''. The Daily Universe. Brigham Young University. 24 October 2015. Retrieved 6 April 2016. Jump up ^ `` Kyrgyzstan Goes Bananas for Citizen No. 6 Million ''. EurasiaNet.org. Retrieved 6 April 2016. Jump up ^ `` Kyrgyzstan welcomes six millionth citizen : `` It 's a girl ! '' - Ferghana Information agency, Moscow ``. Retrieved 6 April 2016. Global human population Major topics Biocapacity Optimum population Overpopulation Malthusian catastrophe Population Population ethics Population momentum Sustainable development Women 's reproductive rights Zero population growth Biological and related topics Family planning Pledge two or fewer Human population planning One - child policy Two - child policy Population biology Population decline Population density Physiological density Population dynamics Population growth Population model Population pyramid Projections of population growth Human impact on the environment Deforestation Desalination Desertification Environmental impact of agriculture of aviation of biodiesel of concrete of electricity generation of the energy industry of fishing of irrigation of mining of off - roading of oil shale industry of palm oil of paper of the petroleum industry of reservoirs of shipping of war Industrialisation Land degradation Land reclamation Overconsumption Pollution Quarrying Urbanization Loss of green belts Urban sprawl Waste Water scarcity Overdrafting Population ecology Carrying capacity Deep ecology Earth 's energy budget Food security Habitat destruction I = P × A × T Malthusian growth model Overshoot ( population ) World energy consumption World energy resources World3 model Literature A Modest Proposal Observations Concerning the Increase of Mankind, Peopling of Countries, etc. An Essay on the Principle of Population `` How Much Land Does a Man Need ? '' Operating Manual for Spaceship Earth Population Control : Real Costs, Illusory Benefits The Limits to Growth The Population Bomb The Skeptical Environmentalist The Ultimate Resource Publications Population and Environment Population and Development Review Lists Population and housing censuses by country Metropolitan areas by population Population milestone babies Events and organizations 7 Billion Actions International Conference on Population and Development Population Action International Population Connection Population Matters Population Research Institute United Nations Population Fund Voluntary Human Extinction Movement World Population Day World Population Foundation Related topics Classic Maya collapse Fertility and intelligence Green Revolution Holocene extinction Migration Commons Human overpopulation Human activities with impact on the environment Human migration Retrieved from `` https://en.wikipedia.org/w/index.php?title=World_population_milestones&oldid=846783720 '' Categories : World population Hidden categories : CS1 Croatian - language sources ( hr ) CS1 maint : Multiple names : authors list CS1 German - language sources ( de ) CS1 Russian - language sources ( ru ) CS1 Vietnamese - language sources ( vi ) Use dmy dates from October 2012 All articles with unsourced statements Articles with unsourced statements from September 2017 Articles with unsourced statements from November 2011 Incomplete lists from April 2016 Articles containing Kazakh - language text Talk Contents About Wikipedia Asturianu Español Edit links This page was last edited on 20 June 2018, at 21 : 25 ( UTC ). 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Question: when did earth's population reached 6 billion
Answer: 1999