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Afghanistan37,466,414 (July 2021 est.)
Akrotiriapproximately 18,195 on the Sovereign Base Areas of Akrotiri and Dhekelia including 11,000 Cypriots and 7,195 Service and UK-based contract personnel and dependents (2020)
Albania3,088,385 (July 2021 est.)
Algeria43,576,691 (July 2021 est.)
American Samoa46,366 (July 2021 est.)
Andorra85,645 (July 2021 est.)
Angola33,642,646 (July 2021 est.)

note: Angola's national statistical agency projected the country's 2017 population to be 28.4 million
Anguilla18,403 (July 2021 est.)
Antarcticano indigenous inhabitants, but there are both permanent and summer-only staffed research stations

note: 53 countries have signed the 1959 Antarctic Treaty; 30 of those operate through their National Antarctic Program a number of seasonal-only (summer) and year-round research stations on the continent and its nearby islands south of 60 degrees south latitude (the region covered by the Antarctic Treaty); the population engaging in and supporting science or managing and protecting the Antarctic region varies from approximately 4,400 in summer to 1,100 in winter; in addition, approximately 1,000 personnel, including ship's crew and scientists doing onboard research, are present in the waters of the treaty region

as of 2017, peak summer (December-February) maximum capacity in scientific stations - 4,877 total; Argentina 601, Australia 243, Belarus 12, Belgium 40, Brazil 66, Bulgaria 22, Chile 433, China 166, Czechia 20, Ecuador 34, Finland 17, France 90, France and Italy jointly 80, Germany 104, India 113, Italy 120, Japan 130, South Korea 130, Netherlands 10, NZ 86, Norway 70, Peru 30, Poland 40, Russia 335, South Africa 80, Spain 98, Sweden 20, Ukraine 24, UK 196, US 1,399, Uruguay 68 (2017)

winter (June-August) maximum capacity in scientific station - 1,036 total; Argentina 221, Australia 52, Brazil 15, Chile 114, China 32, France 24, France and Italy jointly 13, Germany 9, India 48, Japan 40, Netherlands 10, South Korea 25, NZ 11, Norway 7, Poland 16, Russia 125, South Africa 15, Ukraine 12, UK 44, US 215, Uruguay 8 (2017)

research stations operated within the Antarctic Treaty area (south of 60 degrees south latitude) by National Antarctic Programs year-round stations - approximately 40 total; Argentina 6, Australia 3, Brazil 1, Chile 6, China 2, France 1, France and Italy jointly 1, Germany 1, India 2, Japan 1, Netherlands 1, South Korea 2, NZ 1, Norway 1, Poland 1, Russia 5, South Africa 1, Ukraine 1, UK 2, US 3, Uruguay 2 (2017)

a range of seasonal-only (summer) stations, camps, and refuges - Argentina, Australia, Belarus, Belgium, Bulgaria, Brazil, Chile, China, Czechia, Ecuador, Finland, France, Germany, India, Italy, Japan, Netherlands, South Korea, New Zealand, Norway, Peru, Poland, Russia, South Africa, Spain, Sweden, Ukraine, UK, US, and Uruguay (2017)

in addition, during the austral summer some nations have numerous occupied locations such as tent camps, summer-long temporary facilities, and mobile traverses in support of research
Antigua and Barbuda99,175 (July 2021 est.)
Argentina45,864,941 (July 2021 est.)
Armenia3,011,609 (July 2021 est.)
Aruba120,917 (July 2021 est.)
Ashmore and Cartier Islandsno indigenous inhabitants (July 2021 est.)

note: Indonesian fishermen are allowed access to the lagoon and fresh water at Ashmore Reef's West Island; access to East and Middle Islands is by permit only
Australia25,809,973 (July 2021 est.)
Austria8,884,864 (July 2021 est.)
Azerbaijan10,282,283 (July 2021 est.)
Bahamas, The352,655 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Bahrain1,526,929 (July 2021 est.)

note: immigrants make up approximately 45% of the total population, according to UN data (2019)
Bangladesh164,098,818 (July 2021 est.)
Barbados301,865 (July 2021 est.)
Belarus9,441,842 (July 2021 est.)
Belgium11,778,842 (July 2021 est.)
Belize405,633 (July 2021 est.)
Benin13,301,694 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Bermuda72,084 (July 2021 est.)
Bhutan857,423 (July 2021 est.)
Bolivia11,758,869 (July 2021 est.)
Bosnia and Herzegovina3,824,782 (July 2021 est.)
Botswana2,350,667 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Bouvet Islanduninhabited
Brazil213,445,417 (July 2021 est.)
British Indian Ocean Territoryno indigenous inhabitants

note: approximately 1,200 former agricultural workers resident in the Chagos Archipelago, often referred to as Chagossians or Ilois, were relocated to Mauritius and the Seychelles in the 1960s and 1970s; approximately 3,000 UK and US military personnel and civilian contractors living on the island of Diego Garcia (2018)
British Virgin Islands37,891 (July 2021 est.)
Brunei471,103 (July 2021 est.)

note: immigrants make up approximately 26% of the total population, according to UN data (2019)
Bulgaria6,919,180 (July 2021 est.)
Burkina Faso21,382,659 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Burma57,069,099 (July 2021 est.)
Burundi12,241,065 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Cambodia17,304,363 (July 2021 est.)
Cameroon28,524,175 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Canada37,943,231 (July 2021 est.)
Cayman Islands63,131 (July 2021 est.)

note: most of the population lives on Grand Cayman
Central African Republic5,357,984 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Chad17,414,108 (July 2021 est.)
Chile18,307,925 (July 2021 est.)
China1,397,897,720 (July 2021 est.)
Christmas Island2,205 (2016 est.)
Clipperton Islanduninhabited
Cocos (Keeling) Islands596 (July 2014 est.)
Colombia50,355,650 (July 2021 est.)
Comoros864,335 (July 2021 est.)
Congo, Democratic Republic of the105,044,646 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Congo, Republic of the5,417,414 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Cook Islands8,327 (July 2021 est.)

note: the Cook Islands' Ministry of Finance & Economic Management estimated the resident population to have been 11,700 in September 2016
Coral Sea Islandsno indigenous inhabitants (July 2021 est.)

note: there is a staff of four at the meteorological station on Willis Island
Costa Rica5,151,140 (July 2021 est.)
Cote d'Ivoire28,088,455 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Croatia4,208,973 (July 2021 est.)
Cuba11,032,343 (July 2021 est.)
Curacao151,885 (July 2021 est.)
Cyprus1,281,506 (July 2021 est.)
Denmark5,894,687 (July 2021 est.)
Dhekeliaapproximately 15,500 on the Sovereign Base Areas of Akrotiri and Dhekelia including 9,700 Cypriots and 5,800 Service and UK-based contract personnel and dependents
Djibouti938,413 (July 2021 est.)
Dominica74,584 (July 2021 est.)
Dominican Republic10,597,348 (July 2021 est.)
Ecuador17,093,159 (July 2021 est.)
Egypt106,437,241 (July 2021 est.)
El Salvador6,528,135 (July 2021 est.)
Equatorial Guinea857,008 (July 2021 est.)
Eritrea6,147,398 (July 2021 est.)
Estonia1,220,042 (July 2021 est.)
Ethiopia110,871,031 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
European Union 450,131,902 (July 2021 est.)

rank by population:

  1. Germany - 79,903,481; 
  2. France - 68,084,217; 
  3. Italy - 62,390,364; 
  4. Spain - 47,260,584; 
  5. Poland - 38,185,913; 
  6. Romania - 21,230,362; 
  7. Netherlands - 17,337,403; 
  8. Belgium - 11,778,842; 
  9. Czechia - 10,702,596; 
  10. Greece - 10,569,703; 
  11. Portugal - 10,263,850; 
  12. Sweden - 10,261,767; 
  13. Hungary - 9,728,337; 
  14. Austria - 8,884,864; 
  15. Bulgaria - 6,919,180; 
  16. Denmark - 5,894,687; 
  17. Finland - 5,587,442; 
  18. Slovakia - 5,436,066; 
  19. Ireland - 5,224,884; 
  20. Croatia - 4,208,973; 
  21. Lithuania - 2,711,566; 
  22. Slovenia - 2,102,106; 
  23. Latvia - 1,862,687; 
  24. Cyprus - 1,281,506; 
  25. Estonia - 1,220,042; 
  26. Luxembourg - 639,589; 
  27. Malta - 460,891 (July 2021 est.)

Falkland Islands (Islas Malvinas)3,198 (2016 est.)

note: data include all persons usually resident in the islands at the time of the 2016 census
Faroe Islands51,943 (July 2021 est.)
Fiji939,535 (July 2021 est.)
Finland5,587,442 (July 2021 est.)
France68,084,217 (July 2021 est.)

note: the above figure is for metropolitan France and five overseas regions; the metropolitan France population is 62,814,233
French Polynesia297,154 (July 2021 est.)
French Southern and Antarctic Landsno indigenous inhabitants

Ile Amsterdam (Ile Amsterdam et Ile Saint-Paul): uninhabited but has a meteorological station
Ile Saint-Paul (Ile Amsterdam et Ile Saint-Paul): uninhabited but is frequently visited by fishermen and has a scientific research cabin for short stays
Iles Crozet: uninhabited except for 18 to 30 people staffing the Alfred Faure research station on Ile del la Possession
Iles Kerguelen: 50 to 100 scientists are located at the main base at Port-aux-Francais on Ile Kerguelen
Bassas da India (Iles Eparses): uninhabitable
Europa Island, Glorioso Islands, Juan de Nova Island (Iles Eparses): a small French military garrison and a few meteorologists on each possession; visited by scientists
Tromelin Island (Iles Eparses): uninhabited, except for visits by scientists
Gabon2,284,912 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Gambia, The2,221,301 (July 2021 est.)
Gaza Strip1,957,062 (July 2021 est.)
Georgia4,933,674 (July 2021 est.)
Germany79,903,481 (July 2021 est.)
Ghana32,372,889 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Gibraltar29,516 (July 2021 est.)
Greece10,569,703 (July 2021 est.)
Greenland57,799 (July 2021 est.)
Grenada113,570 (July 2021 est.)
Guam168,801 (July 2021 est.)
Guatemala17,422,821 (July 2021 est.)
Guernsey67,334 (July 2021 est.)
Guinea12,877,894 (July 2021 est.)
Guinea-Bissau1,976,187 (July 2021 est.)
Guyana787,971 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Haiti11,198,240 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Heard Island and McDonald Islandsuninhabited
Holy See (Vatican City)1,000 (2019 est.)
Honduras9,346,277 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Hong Kong7,263,234 (July 2021 est.)
Hungary9,728,337 (July 2021 est.)
Iceland354,234 (July 2021 est.)
India1,339,330,514 (July 2021 est.)
Indonesia275,122,131 (July 2021 est.)
Iran85,888,910 (July 2021 est.)
Iraq39,650,145 (July 2021 est.)
Ireland5,224,884 (July 2021 est.)
Israel8,787,045 (includes populations of the Golan Heights or Golan Sub-District and also East Jerusalem, which was annexed by Israel after 1967) (July 2021 est.)

note: approximately 227,100 Israeli settlers live in East Jerusalem (2019); following the March 2019 US recognition of the Golan Heights as being part of Israel, The World Factbook no longer includes Israeli settler population of the Golan Heights (estimated at 23,400 in 2019) in its overall Israeli settler total
Italy62,390,364 (July 2021 est.)
Jamaica2,816,602 (July 2021 est.)
Jan Mayenno indigenous inhabitants

note: military personnel operate the the weather and coastal services radio station
Japan124,687,293 (July 2021 est.)
Jersey101,476 (July 2021 est.)
Jordan10,909,567 (July 2021 est.)

note: increased estimate reflects revised assumptions about the net migration rate due to the increased flow of Syrian refugees
Kazakhstan19,245,793 (July 2021 est.)
Kenya54,685,051 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Kiribati113,001 (July 2021 est.)
Korea, North25,831,360 (July 2021 est.)
Korea, South51,715,162 (July 2021 est.)
Kosovo1,935,259 (July 2021 est.)
Kuwait3,032,065 (July 2021 est.)

note: Kuwait's Public Authority for Civil Information estimates the country's total population to be 4,420,110 for 2019, with non-Kuwaitis accounting for nearly 70% of the population
Kyrgyzstan6,018,789 (July 2021 est.)
Laos7,574,356 (July 2021 est.)
Latvia1,862,687 (July 2021 est.)
Lebanon5,261,372 (July 2021 est.)
Lesotho2,177,740 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Liberia5,214,030 (July 2021 est.)
Libya7,017,224 (July 2021 est.)

note: immigrants make up just over 12% of the total population, according to UN data (2019)
Liechtenstein39,425 (July 2021 est.)

note: immigrants make up 67% of the total population, according to UN data (2019)
Lithuania2,711,566 (July 2021 est.)
Luxembourg639,589 (July 2021 est.)
Macau630,396 (July 2021 est.)
Madagascar27,534,354 (July 2021 est.)
Malawi20,308,502 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Malaysia33,519,406 (July 2021 est.)
Maldives390,669 (July 2021 est.)
Mali20,137,527 (July 2021 est.)
Malta460,891 (July 2021 est.)
Marshall Islands78,831 (July 2021 est.)
Mauritania4,079,284 (July 2021 est.)
Mauritius1,386,129 (July 2021 est.)
Mexico130,207,371 (July 2021 est.)
Micronesia, Federated States of101,675 (July 2021 est.)
Moldova3,323,875 (July 2021 est.)
Monaco31,223 (July 2021 est.)

note: immigrants make up almost 68% of the total population, according to UN data (2019)
Mongolia3,198,913 (July 2021 est.)

note: Mongolia is one of the least densely populated countries in the world (2 people per sq km); twice as many ethnic Mongols (some 6 million) live in Inner Mongolia (Nei Mongol) in neighboring China
Montenegro607,414 (July 2021 est.)
Montserrat5,387 (July 2021 est.)

note: an estimated 8,000 refugees left the island following the resumption of volcanic activity in July 1995; some have returned
Morocco36,561,813 (July 2021 est.)

note: includes Western Sahara
Mozambique30,888,034 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Namibia2,678,191 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Nauru9,770 (July 2021 est.)
Navassa Islanduninhabited; transient Haitian fishermen and others camp on the island
Nepal30,424,878 (July 2021 est.)
Netherlands17,337,403 (July 2021 est.)
New Caledonia293,608 (July 2021 est.)
New Zealand4,991,442 (July 2021 est.)
Nicaragua6,243,931 (July 2021 est.)
Niger23,605,767 (July 2021 est.)
Nigeria219,463,862 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Niue2,000 (July 2021 est.)

note: because of the island's limited economic and educational opportunities, Niueans have emigrated for decades - primarily to New Zealand, but also to Australia and other Pacific island states; Niue's population peaked in 1966 at 5,194, but by 2005 had fallen to 1,508; since then it has rebounded slightly; as of 2013, 23,883 people of Niuean ancestry lived in New Zealand - with more than 20% Niue-born; this means that there are about 15 times as many persons of Niuean ancestry living in New Zealand as in Niue, possibly the most eccentric population distribution in the world
Norfolk Island1,748 (2016 est.)
Northern Mariana Islands51,659 (July 2021 est.)
Norway5,509,591 (July 2021 est.)
Oman3,694,755 (July 2021 est.)

note: immigrants make up approximately 46% of the total population (2019)
Pakistan238,181,034 (July 2021 est.)

note: provisional results of Pakistan's 2017 national census estimate the country's total population to be 207,774,000
Palau21,613 (July 2021 est.)
Panama3,928,646 (July 2021 est.)
Papua New Guinea7,399,757 (July 2021 est.)
Paracel Islands1,440 (July 2014 est.)

note: Chinese activity has increased in recent years, particularly on Woody Island, where the population exceeds 1,000; there are scattered Chinese garrisons on some other islands
Paraguay7,272,639 (July 2021 est.)
Peru32,201,224 (July 2021 est.)
Philippines110,818,325 (July 2021 est.)
Pitcairn Islands50 (2021 est.)
Poland38,185,913 (July 2021 est.)
Portugal10,263,850 (July 2021 est.)
Puerto Rico3,142,779 (July 2021 est.)
Qatar2,479,995 (July 2021 est.)
Romania21,230,362 (July 2021 est.)
Russia142,320,790 (July 2021 est.)
Rwanda12,943,132 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Saint Barthelemy7,116 (July 2021 est.)
Saint Kitts and Nevis54,149 (July 2021 est.)
Saint Lucia166,637 (July 2021 est.)
Saint Martin32,680 (July 2021 est.)
Saint Pierre and Miquelon5,321 (July 2021 est.)
Saint Vincent and the Grenadines101,145 (July 2021 est.)
Samoa204,898 (July 2021 est.)
San Marino34,467 (July 2021 est.)
Sao Tome and Principe213,948 (July 2021 est.)
Saudi Arabia34,783,757 (July 2021 est.)

note: immigrants make up 38.3% of the total population, according to UN data (2019)
Senegal16,082,442 (July 2021 est.)
Serbia6,974,289 (July 2021 est.)

note: does not include the population of Kosovo
Seychelles96,387 (July 2021 est.)
Sierra Leone6,807,277 (July 2021 est.)
Singapore5,866,139 (July 2021 est.)
Sint Maarten44,564 (July 2021 est.)
Slovakia5,436,066 (July 2021 est.)
Slovenia2,102,106 (July 2021 est.)
Solomon Islands690,598 (July 2021 est.)
Somalia12,094,640 (July 2021 est.)

note: this estimate was derived from an official census taken in 1975 by the Somali Government; population counting in Somalia is complicated by the large number of nomads and by refugee movements in response to famine and clan warfare
South Africa56,978,635 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
South Sudan10,984,074 (July 2021 est.)
Spain47,260,584 (July 2021 est.)
Spratly Islandsno indigenous inhabitants (July 2021 est.)

note: there are scattered garrisons occupied by military personnel of several claimant states
Sri Lanka23,044,123 (July 2021 est.)
Sudan46,751,152 (July 2021 est.)
Suriname614,749 (July 2021 est.)
Svalbard2,926 (January 2021 est.)
Sweden10,261,767 (July 2021 est.)
Switzerland8,453,550 (July 2021 est.)
Syria20,384,316 (July 2021 est.)

note: approximately 22,900 Israeli settlers live in the Golan Heights (2018)
Taiwan23,572,052 (July 2021 est.)
Tajikistan8,990,874 (July 2021 est.)
Tanzania62,092,761 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Thailand69,480,520 (July 2021 est.)
Togo8,283,189 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Tokelau1,647 (2019 est.)
Tonga105,780 (July 2021 est.)
Trinidad and Tobago1,221,047 (July 2021 est.)
Tunisia11,811,335 (July 2021 est.)
Turkey82,482,383 (July 2021 est.)
Turkmenistan5,579,889 (July 2021 est.)

note: some sources suggest Turkmenistan's population could be as much as 1 to 2 million people lower than available estimates because of large-scale emigration during the last 10 years
Turks and Caicos Islands57,196 (July 2021 est.)
Tuvalu11,448 (July 2021 est.)
Uganda44,712,143 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Ukraine43,745,640 (July 2021 est.)
United Arab Emirates9,856,612 (July 2021 est.)

note: the UN estimated the country's total population was 9,771,000 as of mid-year 2019; immigrants make up 87.9% of the total population, according to UN data (2019)
United Kingdom67.081 million United Kingdom (June 2020 est.)

constituent countries by percentage of total population:
England 84.3%
Scotland 8.1%
Wales 4.7%
Northern Ireland 2.8%
United States334,998,398 (July 2021 est.)

note: the US Census Bureau's 2020 census results show the US population as 331,449,281 as of 1 April 2020
Uruguay3,398,239 (July 2021 est.)
Uzbekistan30,842,796 (July 2021 est.)
Vanuatu303,009 (July 2021 est.)
Venezuela29,069,153 (July 2021 est.)
Vietnam102,789,598 (July 2021 est.)
Virgin Islands105,870 (July 2021 est.)
Wake Islandno indigenous inhabitants (2018 est.)

note: approximately 100 military personnel and civilian contractors maintain and operate the airfield and communications facilities
Wallis and Futuna15,851 (July 2021 est.)
West Bank2,949,246 (July 2021 est.)

note: approximately 432,000 Israeli settlers live in the West Bank (2019); approximately 227,100 Israeli settlers live in East Jerusalem (2019)
World7,772,850,805 (July 2021 est.)

top ten most populous countries (in millions): China 1397.89; India 1339.33; United States 334.99; Indonesia 275.12; Pakistan 238.18; Nigeria 219.47; Brazil 213.45; Bangladesh 164.1; Russia 142.32; Japan 124.69

ten least populous countries: Holy See (Vatican City) 1,000; Saint Pierre and Miquelon 5,321; Montserrat 5,387; Saint Barthelemy 7,116; Saint Helena, Ascension, and Tristan de Cunha 7,915; Cook Islands 8,327; Nauru 9,770; Tuvalu 11,448; Wallis and Futuna 15,851; Anguilla 18,403

ten most densely populated countries (population per sq km): Macau 22,514; Monaco 15,611; Singapore 8,273; Hong Kong 6,769; Gaza Strip 5,436; Gibraltar 4,216; Bahrain 2,009; Malta 1,458; Bermuda 1,335; Maldives 1,311

ten least densely populated countries (population per sq km): Greenland .027; Falkland Islands .26; Mongolia 2.1; Namibia 3.3; Australia 3.4; Iceland 3.5; Suriname 3.9; Mauritania 4; Libya 4; Guyana 4
Yemen30,399,243 (July 2021 est.)
Zambia19,077,816 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected
Zimbabwe14,829,988 (July 2021 est.)

note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected

Source: CIA Factbook