The Insular Region of Equatorial Guinea comprises the former Spanish territory of Fernando Po, together with Annobón island, the latter formerly part of the Spanish territory of Elobey, Annobón and Corisco, which was located in the Gulf of Guinea and in the Corisco Bay.
The region covers 2,052 km² and has a population of about 265,000. It is split into three political jurisdictions:
The islands located in Corisco Bay are not part of the Insular Region but are included in the Litoral Province which is part of Continental Region (Litoral Province).
The largest city, Malabo, is the national and regional administrative capital. The other main cities are Luba, Riaba, Rebola, Baney, and San Antonio de Palé.
Bioko Bioko Island was known as "Fernando Po" until the 1970s. It is located about 40 km away from Cameroon and is the largest island of the Gulf of Guinea, covering 2,017 km².
Annobón With just 17 km², this small volcanic island is the most remote territory of the Republic of Equatorial Guinea. It is located 670 km away from Malabo and 580 km away from Bata, and is south of the equator. Between Annobón and Bioko are located the sovereign state of São Tomé and Príncipe.