- Population
- total: 223,561 (2024 est.)
male: 111,553
female: 112,008 - Nationality
- noun: Sao Tomean(s)
adjective: Sao Tomean - Ethnic groups
- Mestico, Angolares (descendants of Angolan slaves), Forros (descendants of freed slaves), Servicais (contract laborers from Angola, Mozambique, and Cabo Verde), Tongas (children of servicais born on the islands), Europeans (primarily Portuguese), Asians (mostly Chinese)
- Languages
- Portuguese 98.4% (official), Forro 36.2%, Cabo Verdian 8.5%, French 6.8%, Angolar 6.6%, English 4.9%, Lunguie 1%, other (including sign language) 2.4%; other Portuguese-based Creoles are also spoken (2012 est.)
note: shares of language sum to more than 100% because some respondents gave more than one answer on the census - Religions
- Catholic 55.7%, Adventist 4.1%, Assembly of God 3.4%, New Apostolic 2.9%, Mana 2.3%, Universal Kingdom of God 2%, Jehovah's Witness 1.2%, other 6.2%, none 21.2%, unspecified 1% (2012 est.)
- Age structure
- 0-14 years: 36.4% (male 41,337/female 40,106)
15-64 years: 60.3% (male 67,101/female 67,775)
65 years and over: 3.2% (2024 est.) (male 3,115/female 4,127) - Dependency ratios
- total dependency ratio: 65.8 (2024 est.)
youth dependency ratio: 60.4 (2024 est.)
elderly dependency ratio: 5.4 (2024 est.)
potential support ratio: 18.6 (2024 est.) - Median age
- total: 21.2 years (2025 est.)
male: 20.4 years
female: 21.2 years - Population growth rate
- 1.39% (2025 est.)
- Birth rate
- 25.87 births/1,000 population (2025 est.)
- Death rate
- 5.84 deaths/1,000 population (2025 est.)
- Net migration rate
- -6.15 migrant(s)/1,000 population (2025 est.)
- Population distribution
- Sao Tome, the capital city, has roughly a quarter of the nation's population; Santo Antonio is the largest town on Principe; the northern areas of both islands have the highest population densities, as shown in this population distribution map
- Urbanization
- urban population: 76.4% of total population (2023)
rate of urbanization: 2.96% annual rate of change (2020-25 est.) - Major urban areas - population
- 80,000 SAO TOME (capital) (2018)
- Sex ratio
- at birth: 1.03 male(s)/female
0-14 years: 1.03 male(s)/female
15-64 years: 0.99 male(s)/female
65 years and over: 0.75 male(s)/female
total population: 1 male(s)/female (2024 est.) - Mother's mean age at first birth
- 19.4 years (2008/09 est.)
note: data represents median age at first birth among women 25-29 - Maternal mortality ratio
- 75 deaths/100,000 live births (2023 est.)
- Infant mortality rate
- total: 41.7 deaths/1,000 live births (2025 est.)
male: 46.1 deaths/1,000 live births
female: 39 deaths/1,000 live births - Life expectancy at birth
- total population: 67.7 years (2024 est.)
male: 66 years
female: 69.4 years - Total fertility rate
- 3.18 children born/woman (2025 est.)
- Gross reproduction rate
- 1.57 (2025 est.)
- Drinking water source
- improved: urban: urban: 79.3% of population (2022 est.)
improved: rural: rural: 71.1% of population (2022 est.)
improved: total: total: 77.3% of population (2022 est.)
unimproved: urban: urban: 20.7% of population (2022 est.)
unimproved: rural: rural: 28.9% of population (2022 est.)
unimproved: total: total: 22.7% of population (2022 est.) - Health expenditure
- Health expenditure (as % of GDP): 7.8% of GDP (2021)
Health expenditure (as % of national budget): 14.9% of national budget (2022 est.) - Physician density
- 0.46 physicians/1,000 population (2022)
- Hospital bed density
- 2.9 beds/1,000 population (2019 est.)
- Sanitation facility access
- improved: urban: urban: 56.8% of population (2022 est.)
improved: rural: rural: 43.2% of population (2022 est.)
improved: total: total: 53.5% of population (2022 est.)
unimproved: urban: urban: 43.2% of population (2022 est.)
unimproved: rural: rural: 56.8% of population (2022 est.)
unimproved: total: total: 46.5% of population (2022 est.) - Obesity - adult prevalence rate
- 12.4% (2016)
- Alcohol consumption per capita
- total: 4.23 liters of pure alcohol (2019 est.)
beer: 0.42 liters of pure alcohol (2019 est.)
wine: 3.58 liters of pure alcohol (2019 est.)
spirits: 0.23 liters of pure alcohol (2019 est.)
other alcohols: 0 liters of pure alcohol (2019 est.) - Tobacco use
- total: 7.3% (2025 est.)
male: 13.1% (2025 est.)
female: 1.7% (2025 est.) - Children under the age of 5 years underweight
- 5.4% (2019 est.)
- Currently married women (ages 15-49)
- 53.1% (2019 est.)
- Child marriage
- women married by age 15: 5.4% (2019)
women married by age 18: 28% (2019)
men married by age 18: 3.1% (2019) - Education expenditure
- Education expenditure (% GDP): 5% of GDP (2023 est.)
Education expenditure (% national budget): 18.1% national budget (2024 est.) - Literacy
- total population: 87.4% (2019 est.)
male: 92.5% (2019 est.)
female: 82.8% (2019 est.) - School life expectancy (primary to tertiary education)
- total: 13 years (2021 est.)
male: 13 years (2021 est.)
female: 13 years (2021 est.)