Mombasa Mombasa Mombasa () is a seaport city on the coast of Kenya, along the Indian Ocean. It is the country's oldest (circa 900 AD) and second-largest city (after the capital Nairobi), with an estimated population of about 1.4 million people in 2016. Its metropolitan region is the second largest in the country and has a population of approximately 3 million people. Administratively, Mombasa is the county seat of Mombasa County. Mombasa is a regional cultural and economic hub; it has an extra-large port and an international airport, and is an important regional tourism center. Located on the east coast of
Lagos–Mombasa Highway west. The eastern section of the Lagos–Mombasa Highway is also the only part of the whole network where the name 'Trans-African Highway' is in common use and is seen on a few road signs. Lagos–Mombasa Highway The Lagos–Mombasa Highway (also known as the "Mombasa-Lagos Highway") is Trans-African Highway 8 and is the principal road route between West and East Africa. It has a length of and is contiguous with the Dakar-Lagos Highway with which it will form (when complete) the longest east-west crossing of the continent for a total distance of Part of the transcontinental road network under development by