There are approx 2.5 million slum dwellers in about 200 settlements in Nairobi representing 60% of the Nairobi population, occupying just 6% of the land. Kibera houses almost 1 Million of these people. Kibera is the biggest slum in Africa and one of the biggest in the world. The population All the people are African. The original settlers were the Nubian people from the Kenyan/Sudanese border – they now occupy about 15% of Kibera, are mostly Muslim and are also mostly shack owners. The other shack owners are mostly Kikuyu (the majority tribe in Nairobi) – although in most cases they do not live there but are absentee landlords. The majority of the tenants are Luo, Luhya and some Kamba – these people are from the west of Kenya. There are many tensions in Kibera, particularly tribal tensions between the Luo & Kikuyu, but also between landlord and tenant and those with and without jobs.