World Demographics Profile 2018

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Population7,405,107,650 (July 2017 est.)
top ten most populous countries (in millions): China 1379.3; India 1281.93; United States 326.63; Indonesia 260.58; Brazil 207.35; Pakistan 204.92; Nigeria 190.63; Bangladesh 157.83; Russia 142.26; Japan 126.45
ten least populous countries: Holy See (Vatican City) 1,000; Montserrat 5,292; Saint Pierre and Miquelon 5,533; Saint Barthelemy 7,184; Saint Helena, Ascension, and Tristan de Cunha 7,828; Cook Islands 9,290; Nauru 9,642; Tuvalu 11,052; Wallis and Futuna 15,714; Anguilla 17,087
ten most densely populated countries (population per sq km): Macau 21,346; Monaco 15,322; Singapore 8,572; Hong Kong 6,702; Gaza Strip 4,987; Gibraltar 4,523; Bahrain 1,857; Maldives 1,318; Malta 1,317; Bermuda 1,312
ten least densely populated countries (population per sq km): Greenland less than 1; Mongolia 2.0; Western Sahara 2.3; Australia 3.0; Namibia 3.0; Iceland 3.4; Mauritania 3.6; Guyana 3.7; Libya 3.8; Suriname 3.8
Age structure0-14 years: 25.44% (male 963,981,944/female 898,974,458)
15-24 years: 16.16% (male 611,311,930/female 572,229,547)
25-54 years: 41.12% (male 1,522,999,578/female 1,488,011,505)
55-64 years: 8.6% (male 307,262,939/female 322,668,546)
65 years and over: 8.68% (male 283,540,918/female 352,206,092) (2017 est.)
Dependency ratiostotal dependency ratio: 52.5
youth dependency ratio: 39.9
elderly dependency ratio: 12.6
potential support ratio: 7.9 (2015 est.)
Median agetotal: 30.4 years
male: 29.6 years
female: 31.1 years (2017 est.)
Population growth rate1.06%
note: this rate results in about 148 net additions to the worldwide population every minute or 2.5 every second (2016 est.)
Birth rate18.5 births/1,000 population
note: this rate results in about 258 worldwide births per minute or 4.3 births every second (2016 est.)
Death rate7.8 deaths/1,000 population
note: this rate results in about 108 worldwide deaths per minute or 1.8 deaths every second (2016 est.)
Urbanizationurban population: 54.9% of total population (2017)
rate of urbanization: 1.84% annual rate of change (2015-20 est.)
ten largest urban agglomerations: Tokyo (Japan) - 38,241,000; New Delhi (India) - 27,197,000; Shanghai (China) - 25,202,000; Beijing (China) - 22,063,000; Mumbai (India) - 21,690,000; Sao Paulo (Brazil) - 21,519,000; Mexico City (Mexico) - 21,321,000; Osaka (Japan) - 20,415,000; Cairo (Egypt) - 19,486,000; Dhaka (Bangladesh) - 18,898,000 (2017)
Sex ratioat birth: 1.03 male(s)/female
0-14 years: 1.07 male(s)/female
15-24 years: 1.07 male(s)/female
25-54 years: 1.02 male(s)/female
55-64 years: 0.95 male(s)/female
65 years and over: 0.81 male(s)/female
total population: 1.02 male(s)/female (2016 est.)
Infant mortality ratetotal: 34.1 deaths/1,000 live births
male: 36.1 deaths/1,000 live births
female: 32.1 deaths/1,000 live births (2016 est.)
Life expectancy at birthtotal population: 69 years
male: 67 years
female: 71.1 years (2017 est.)
Total fertility rate2.42 children born/woman (2016 est.)
HIV/AIDS - adult prevalence rate0.8% (2016 est.)
HIV/AIDS - people living with HIV/AIDS36.7 million (2016 est.)
HIV/AIDS - deaths1 million (2016 est.)
Drinking water sourceimproved:
urban: 96.5% of population
rural: 84.7% of population
total: 91.1% of population
unimproved:
urban: 3.5% of population
rural: 15.3% of population
total: 8.9% of population (2015 est.)
Sanitation facility accessimproved:
urban: 82.3% of population
rural: 50.5% of population
total: 67.7% of population
unimproved:
urban: 17.7% of population
rural: 49.5% of population
total: 32.3% of population (2015 est.)
ReligionsChristian 31.4%, Muslim 23.2%, Hindu 15%, Buddhist 7.1%, folk religions 5.9%, Jewish 0.2%, other 0.8%, unaffiliated 16.4% (2010 est.)
LanguagesMandarin Chinese 12.2%, Spanish 5.8%, English 4.6%, Arabic 3.6%, Hindi 3.6%, Portuguese 2.8%, Bengali 2.6%, Russian 2.3%, Japanese 1.7%, Punjabi, Western 1.2%, Javanese 1.2% (2016 est.)
note 1: percents are for "first language" speakers only; the six UN languages - Arabic, Chinese (Mandarin), English, French, Russian, and Spanish (Castilian) - are the mother tongue or second language of about half of the world's population, and are the official languages in more than half the states in the world; some 300 languages have more than a million first-language speakers
note 2: all told, there are an estimated 7,100 languages spoken in the world; approximately 80% of these languages are spoken by less than 100,000 people; about 130 languages are spoken by less than 10 people; communities that are isolated from each other in mountainous regions often develop multiple languages; Papua New Guinea, for example, boasts about 840 separate languages
note 3: approximately 2,300 languages are spoken in Asia, 2,140, in Africa, 1,310 in the Pacific, 1,060 in the Americas, and 290 in Europe (2016)
Literacydefinition: age 15 and over can read and write
total population: 86.2%
male: 89.8%
female: 82.6% (2016 est.)
note: more than three-quarters of the world's 758 million illiterate adults are found in South Asia and sub-Saharan Africa; of all the illiterate adults in the world, almost two-thirds are women (2014)
School life expectancy (primary to tertiary education)total: 12 years
male: 12 years
female: 12 years (2014)
Maternal mortality rate216 deaths/100,000 live births (2015 est.)

Source: CIA World Factbook
This page was last updated on January 20, 2018