Categories: Lists of cities | Cities in Equatorial Guinea Acalayong is a town in south western Rio Muni, Equatorial Guinea. ... Bata is the second largest city of Equatorial Guinea with a population of around 70,000 people. ... Cogo is a remote town on the Mitémélé River in Rio Muni, Equatorial Guinea, lying east of Acalayong. ... Evinayong is a town in south eastern Rio Muni, Equatorial Guinea, with a population of around 5,000 people. ... Luba is the second largest town of Bioko in Equatorial Guinea, having a population of around 7,000 people. ... . Malabo is the capital city of Equatorial Guinea, located on the northern coast of Bioko Island (formerly Fernando Poo). ... Rio Muni (called Mbini in Fang), mainland geographical region of Equatorial Guinea, covering 26,000 km². Rio Muni was ceded by Portugal to Spain in 1778. ... Mongomo is a region in mainland Equatorial Guinea. ...