Physical geography
Volcanic, mountainous.
São Tomé and Príncipe is a country in Middle Africa. Its capital is São Tomé.
Africa and its surrounding islands. The dot marks São Tomé; the mapped territory is highlighted in gold.
Natural Earth · locator mapVolcanic, mountainous.
Languages used in public life include Portuguese.
Central Africa, islands in the Gulf of Guinea, just north of the Equator, west of Gabon.
Three horizontal bands of green (top), yellow (double-width), and green with two five-pointed black stars in the center of the yellow band and a red isosceles triangle based on the left side
São Tomé and Príncipe became independent from Portugal on 12 July 1975 after Portugal’s revolution and negotiations with the liberation movement. A new constitution introduced multiparty politics in 1990.
Cocoa, tourism, fishing and services are important activities. The small island economy depends on imported goods and external finance. Developing transport links and reliable energy supplies is important for growth.
light construction, textiles, soap, beer, fish processing, timber
Dated World Bank observations. Population uses selected years; real GDP uses all available annual observations.
Population estimates may be revised. Selected years are shown.
Sources: World Bank · Population
| Year | People | Thousands of people |
|---|---|---|
| 1970 | 77,626 | 77.626 |
| 1980 | 98,544 | 98.544 |
| 1990 | 122,980 | 122.980 |
| 2000 | 144,018 | 144.018 |
| 2010 | 181,802 | 181.802 |
| 2020 | 217,435 | 217.435 |
| 2025 | 240,254 | 240.254 |
Constant prices adjust for inflation. This is total economic output, not current-dollar GDP or income per person. Missing years are left as gaps.
Sources: World Bank · Real GDP
| Year | Constant 2015 US$ | Billions of constant 2015 US dollars |
|---|---|---|
| 1990 | 118,982,020 | 0.119 |
| 1991 | 120,410,999 | 0.120 |
| 1992 | 121,253,872 | 0.121 |
| 1993 | 122,587,663 | 0.123 |
| 1994 | 125,284,594 | 0.125 |
| 1995 | 127,790,288 | 0.128 |
| 1996 | 129,707,144 | 0.130 |
| 1997 | 130,999,443 | 0.131 |
| 1998 | 134,274,413 | 0.134 |
| 1999 | 137,631,282 | 0.138 |
| 2000 | 138,248,377 | 0.138 |
| 2001 | 142,484,975 | 0.142 |
| 2002 | 147,272,738 | 0.147 |
| 2003 | 159,483,886 | 0.159 |
| 2004 | 165,126,276 | 0.165 |
| 2005 | 176,048,759 | 0.176 |
| 2006 | 191,657,435 | 0.192 |
| 2007 | 198,636,586 | 0.199 |
| 2008 | 211,009,232 | 0.211 |
| 2009 | 217,977,601 | 0.218 |
| 2010 | 221,134,909 | 0.221 |
| 2011 | 225,556,351 | 0.226 |
| 2012 | 232,194,345 | 0.232 |
| 2013 | 244,081,947 | 0.244 |
| 2014 | 256,057,121 | 0.256 |
| 2015 | 259,999,643 | 0.260 |
| 2016 | 273,459,369 | 0.273 |
| 2017 | 284,706,697 | 0.285 |
| 2018 | 297,171,521 | 0.297 |
| 2019 | 303,157,496 | 0.303 |
| 2020 | 311,114,955 | 0.311 |
| 2021 | 317,023,958 | 0.317 |
| 2022 | 317,558,772 | 0.318 |
| 2023 | 318,740,894 | 0.319 |
| 2024 | 323,454,716 | 0.323 |
| 2025 | 326,781,366 | 0.327 |
The Human Development Index combines health, education and income. Scores range from 0 to 1.
The latest values refer to 2023. All historical scores use the same report edition. HDI does not describe every aspect of inequality or quality of life.
Sources: UNDP · Human Development Report 2025
Semi-presidential republic. National Assembly (Assembleia Nacional) has one chamber (a unicameral legislature). The president holds executive responsibilities; the legislature makes national laws.
Three questions about São Tomé and Príncipe.
Sources: CIA World Factbook · archived country profile
Prepared 24 September 2026. World Bank series: SP.POP.TOTL (persons) and NY.GDP.MKTP.KD (constant 2015 US dollars); downloaded 24 September 2026, provider update 13 July 2026. UNDP values use the 2025 report and 2023 observation year. These are dated statistical snapshots, not live population or economic counters.
Maps use Natural Earth geographic data. Background geography, flag descriptions and selected historical facts use archived public-domain CIA World Factbook profiles, supplemented by the sources linked above. The Factbook is no longer updated; dated statistics here come from the separately named providers.