São Tomé Island

• Name — São Tomé • Image Caption — Emblem of São Tomé • Image Map — Gulf of Guinea (English).jpg • Pushpin Map — São Tomé and Príncipe#Africa • Pushpin Map Size — 200 • Pushpin Relief — y • Native Name — Ilha de São Tomé • Native Name Link — Portuguese language • Location — Gulf of Guinea • Archipelago — Cameroon line • Area Km2 — 859 • Length Km — 48 • Width Km — 32 • Highest Mount — Pico de São Tomé • Elevation M — 2024 • Country — São Tomé and Príncipe • Country Admin Divisions Title — Districts • Country Admin Divisions — 6 • Country Largest City — São Tomé • Country Largest City Population — 71,868 • Population — 193,380 • Population As Of — 2018 • Density Km2 — 225 • Ethnic Groups — Mestiços, angolares (descendants of Angolan slaves), forros (descendants of freed slaves), serviçais (contract laborers from Angola, Mozambique, and Cape Verde), tongas (children of serviçais born on the islands), Europeans (primarily Portuguese) • Native Name Lang — pt • Illustration — São Tomé location in Africa São Tomé is an island located in the Gulf of Guinea. At sqmi and a population of 193,380 as of May 2018, it is the largest and most populous island of São Tomé and Príncipe, being home to 96% of the country's population. The island is divided into six districts. It is located north of the Equator.

• Illustration — Island of São Tomé São Tomé is about 48 km long (north-south) by 32 km wide (east-west). It rises to 2,024 m at Pico de São Tomé and includes the homonymous capital city on the northeast coast. It is situated in the Gulf of Guinea, off the western equatorial coast of Africa. The nearest city on mainland Africa is the port city of Port Gentil in Gabon located 240 km to the east. The island is surrounded by a number of small islands, including Ilhéu das Rolas, Ilhéu das Cabras and Ilhéu Gabado.

The main language is Portuguese, but there are many speakers of Forro and Angolar (Ngola), two Portuguese-based creole languages. The name "São Tomé" is Portuguese for Saint Thomas.

The entire island of São Tomé is a massive shield volcano that rises from the floor of the Atlantic Ocean, over below sea level. It formed along the Cameroon line, a line of volcanoes extending from Cameroon southwest into the Atlantic Ocean. Most of the lava erupted on São Tomé over the last million years has been basalt. The youngest dated rock on the island is about 100,000 years old, but numerous more recent cinder cones are found on the southeast side of the island.

The higher slopes of the island are forested and form part of the Parque Natural Obô de São Tomé, but agriculture is important near the north and east coasts. The chief exports are cocoa, coffee, copra, and palm products, while there is also a fishing industry. Large reserves of oil are in the ocean between Nigeria and São Tomé. The discovery has been lamented by some as endangering the nation's political stability and natural environment. In response to these concerns the government of São Tomé and Príncipe has drawn up legislation in an attempt to ensure the efficient and equitable use of oil revenues over time. In 2025, the island was designated as a biosphere reserve by UNESCO, making São Tomé and Príncipe the first country to be designated as such in its entirety following a previous designation on Príncipe.

The island has a total of 63 regular bird species, plus an additional 36 vagrant and unconfirmed species. Of these, 19 are endemic and 3 near endemic; in addition, the local subspecies of olive ibis (Bostrychia olivacea bocagei) and maroon pigeon (Columba thomensis) are endemic and considered critically endangered. Six species are considered vulnerable, and two critically endangered (São Tomé fiscal and São Tomé grosbeak).

São Tomé is divided into the following six districts (seat within brackets): • Água Grande (São Tomé) • Cantagalo (Santana) • Caué (São João dos Angolares) • Lembá (Neves) • Lobata (Guadalupe) • Mé-Zóchi (Trindade)

Villages on the island include: • Agua-Coco • Agua Ize • Alice • Alto Douro • Andrade • Bela Vista • Blublu • Bom Sucesso • Buenos Aires • Dona Augusta • Dona Eugenia • Enjale • Formiga • General Fonseco • Graça • Granja • Guadalupe • Guegue Norte • Henrique • Java • Lemos • Mbombo • Mbondi • Monte Café • Monte Herminios • Monte Rosa • Neves • Nova Olinda • Nzumbi • Plato Café • Ponta Figo • Portinho • Porto Alegre • Perseverança • Quimpo • Ribeira Afonso • Santa Catarina • Santa Clotilde • Santa Cruz • Santa Josefina • Santana • Santo António • São João dos Angolares • São José • São Tomé • Saudade • Trindade • Ubabundo • Illustration — São Tomé Island • Illustration — São Sebastião Lighthouse • Illustration — Boca do Inferno, São Tomé • Illustration — Pico Cão Grande, São Tomé Island • Illustration — Fauna in Lobata District, São Tomé • Illustration — Cocoa production in São Tomé • Illustration — Igreja de Nossa Senhora de Guadalupe, in Guadalupe, São Tomé Island. • Illustration — São Tomé • Illustration — Lagoa Azul, STP • Illustration — One of the traditional Roças in São Tomé and Príncipe • Illustration — Cocoa beans drying, São Tomé • Illustration — Shrimp and French fries as served in a local hotel, São Tomé • Illustration — Guadalupe, São Tomé • Illustration — Sea turtle as seen in São Tomé Island • Illustration — Municipal market of São Tomé City