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Tonga Demographics Profile 2018

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Population106,479 (July 2017 est.)
Age structure0-14 years: 33.87% (male 18,323/female 17,741)
15-24 years: 19.65% (male 10,715/female 10,209)
25-54 years: 34.3% (male 18,243/female 18,278)
55-64 years: 5.76% (male 3,048/female 3,083)
65 years and over: 6.42% (male 3,090/female 3,749) (2017 est.)
Dependency ratiostotal dependency ratio: 74.2
youth dependency ratio: 63.9
elderly dependency ratio: 10.2
potential support ratio: 9.8 (2015 est.)
Median agetotal: 23 years
male: 22.5 years
female: 23.4 years (2017 est.)
Population growth rate-0.05% (2017 est.)
Birth rate22.2 births/1,000 population (2017 est.)
Death rate4.9 deaths/1,000 population (2017 est.)
Net migration rate-17.8 migrant(s)/1,000 population (2017 est.)
Urbanizationurban population: 23.9% of total population (2017)
rate of urbanization: 1.3% annual rate of change (2015-20 est.)
Major cities - populationNUKU'ALOFA 25,000 (2014)
Sex ratioat birth: 1.03 male(s)/female
0-14 years: 1.03 male(s)/female
15-24 years: 1.05 male(s)/female
25-54 years: 1 male(s)/female
55-64 years: 0.98 male(s)/female
65 years and over: 0.84 male(s)/female
total population: 1.01 male(s)/female (2016 est.)
Mother's mean age at first birth24.9 years
note: median age at first birth among women 25-49 (2012 est.)
Infant mortality ratetotal: 11.3 deaths/1,000 live births
male: 11.7 deaths/1,000 live births
female: 10.8 deaths/1,000 live births (2017 est.)
Life expectancy at birthtotal population: 76.4 years
male: 74.9 years
female: 78.1 years (2017 est.)
Total fertility rate3.1 children born/woman (2017 est.)
Contraceptive prevalence rate34.1% (2012)
HIV/AIDS - adult prevalence rateNA
HIV/AIDS - people living with HIV/AIDSNA
HIV/AIDS - deathsNA
Drinking water sourceimproved:
urban: 99.7% of population
rural: 99.6% of population
total: 99.6% of population
unimproved:
urban: 0.3% of population
rural: 0.4% of population
total: 0.4% of population (2015 est.)
Sanitation facility accessimproved:
urban: 97.6% of population
rural: 89% of population
total: 91% of population
unimproved:
urban: 2.4% of population
rural: 11% of population
total: 9% of population (2015 est.)
Major infectious diseasesnote: active local transmission of Zika virus by Aedes species mosquitoes has been identified in this country (as of August 2016); it poses an important risk (a large number of cases possible) among US citizens if bitten by an infective mosquito; other less common ways to get Zika are through sex, via blood transfusion, or during pregnancy, in which the pregnant woman passes Zika virus to her fetus (2016)
Nationalitynoun: Tongan(s)
adjective: Tongan
Ethnic groupsTongan 96.6%, part-Tongan 1.7%, other 1.7%, unspecified 0.03% (2006 est.)
ReligionsProtestant 64.9% (includes Free Wesleyan Church 37.3%, Free Church of Tonga 11.4%, Church of Tonga 7.2%, Tokaikolo Christian Church 2.6%, Assembly of God 2.3%, Seventh Day Adventist 2.2%, Constitutional Church of Tonga 0.9%, Anglican 0.8% and Full Gospel Church 0.2%), Mormon 16.8%, Roman Catholic 15.6%, other 1.1%, none 0.03%, unspecified 1.7% (2006 est.)
LanguagesEnglish and Tongan 87%, Tongan (official) 10.7%, English (official) 1.2%, other 1.1%, unspecified 0.03% (2006 est.)
Literacydefinition: can read and write Tongan and/or English
total population: 99.4%
male: 99.3%
female: 99.4% (2015 est.)
Maternal mortality rate124 deaths/100,000 live births (2015 est.)
Children under the age of 5 years underweight1.9% (2012)
Health expenditures5.2% of GDP (2014)
Physicians density0.56 physicians/1,000 population (2010)
Hospital bed density2.6 beds/1,000 population (2010)
Obesity - adult prevalence rate48.2% (2016)

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