Equatorial Guinea (Spanish: Guinea Ecuatorial; French: Guinée équatoriale; Portuguese: Guiné Equatorial), officially the Republic of Equatorial Guinea (Spanish: República de Guinea Ecuatorial, French: République de Guinée équatoriale, Portuguese: República da Guiné Equatorial), is a country located in Central Africa, with an area of 28,000 square kilometres (11,000 sq mi). Formerly the colony of Spanish Guinea, its post-independence name evokes its location near both the Equator and the Gulf of Guinea. Equatorial Guinea is the only sovereign African state in which Spanish is an official language. As of 2015, the country had an estimated population of 1,222,245.Equatorial Guinea consists of two parts, an insular and a mainland region. The insular region consists of the islands of Bioko (formerly Fernando Pó) in the Gulf of Guinea and Annobón, a small volcanic island which is the only part of the country south of the equator. Bioko Island is the northernmost part of Equatorial Guinea and is the site of the country's capital, Malabo. The island nation of São Tomé and Príncipe is located between Bioko and Annobón. The mainland region, Río Muni, is bordered by Cameroon on the north and Gabon on the south and east. It is the location of Bata, Equatorial Guinea's largest city, and Oyala, the country's planned future capital. Rio Muni also includes several small offshore islands, such as Corisco, Elobey Grande, and Elobey Chico. The country is a member of the African Union, Francophonie, OPEC and the CPLP.
Since the mid-1990s, Equatorial Guinea has become one of sub-Saharan Africa's largest oil producers. It is the richest country per capita in Africa, and its gross domestic product (GDP) adjusted for purchasing power parity (PPP) per capita ranks 43rd in the world; however, the wealth is distributed extremely unevenly, and few people have benefited from the oil riches. The country ranks 135th on the UN's 2016 Human Development Index. The UN says that less than half of the population has access to clean drinking water and that 20% of children die before reaching the age of five.
The country's authoritarian government is cited as having one of the worst human rights records in the world, consistently ranking among the "worst of the worst" in Freedom House's annual survey of political and civil rights. Reporters Without Borders ranks President Teodoro Obiang Nguema Mbasogo among its "predators" of press freedom. Human trafficking is a significant problem; the 2012 U.S. Trafficking in Persons Report stated that Equatorial Guinea "is a source and destination for women and children subjected to forced labor and forced sex trafficking." The report rates Equatorial Guinea as a government that "does not fully comply with minimum standards and is not making significant efforts to do so."