and the sugar-cane area of Mbandjock, which draw thousands of migrant workers, mostly from the highly populated West and Littoral Provinces. As an important educational and government centre, Yaoundé also draws many more highly educated migrants. The majority of the Centre's residents live in the city of Yaoundé (population 1.1 million) or along the roads and in the major towns. The population density thins out away from the major thoroughfares, especially in the Mbam and Upper Sanaga divisions. A few isolated settlements, such as Nanga Eboko, also support a larger population. Settlements in the Centre are traditionally placed along roads, resulting in large numbers of houses near the road with forest beginning directly behind them. The traditional house is a rectangular structure made of mud bricks and thin posts. Roofs are sometimes made of thatched raffia palm, but they are more often of corrugated aluminium, iron, or tin today. People The Centre is one of the most important centres for the Bantu group known as the Beti-Pahuin (Béti-Pahouin), the "Fang-Beti," or simply the "Fang". These peoples share a common language and have similar customs. The Beti-Pahuin are further broken down into the Beti, most of whom live in the Centre Province, and the Bulu and Fang, who primarily inhabit the South. Beti The Beti consist of several smaller groups. The Ewondo (or Yaoundé) occupy the Centre's most populated region, including Yaoundé, Mbalmayo, and the Nyong and So division. The Yezum and Yebekolo are Ewondo sub-groups. The Bane are more numerous in the South Province, but they have some members in the Nyong and So division. The Mbida-Mbane and Mvog-Nyenge live east of Yaoundé. The Eton-Beti, Eton-Beloua, and Beloua-Eton are headquartered in the Lekie division northeast of Yaoundé, including the towns of Saa and Obala. The territory of the Mvelle stretches east from Yaoundé along the Nyong valley to the northern portions of the Nyong and Mfoumou division, including the border town of Ayos and the plantation centre of Mbandjock. The Eki live throughout the Upper Sanaga division with settlements at Nanga Eboko and Minta. In addition, some peoples in the Centre are not truly Beti-Pahuin but are currently in the process of being assimilated by that group. Among these are the Manguissa, who live in a small territory in the Lekie division between the Sanaga River and the town of Sa'a, the Bamvele, Batchanga (Tsinga), Evuzok, Omvang, Yekaba, and Yetudi.