Demographics
The 2009 Kenya Population and Housing Census reported Kibera's population as 170,070. The Kibera slum was previously thought to be one of the biggest informal urban settlements in the world. Several actors had provided and published over the years growing estimations of the size of its population, most of them stating that it was the largest slum in Africa with the number of people there reaching over 1 million. According to Mike Davis, a well known expert on urban slums, Kibera had a population of about 800,000 people. International Housing Coalition (IHC) talked about more than half a million people. UN-Habitat had released several estimations ranging between 350,000 and 1 million people. These statistics mainly come out of analysis of aerial pictures of the area. IRIN estimated a population density of 2000 residents per hectare
In 2008 an independent team of researchers began a door-by-door survey named “Map Kibera Project” with the aim to map physical and socio-demographic features of the slum. A trained team of locals, after having developed an ad-hoc surveying methodology, has so far gathered census data of over 15,000 people and completed the mapping of 5000 structures, services (public toilets, schools), and infrastructures (drainage system, water and electricity supply) in the village of Kianda. On the basis of data collected in Kianda, the MKP team estimated that the whole Kibera slum could be inhabited by a total population ranging from 235,000 to a maximum of 270,000 people, dramatically scaling down all previous figures.
The breakdown of ethnic groups inhabiting Kibera and their gender-specific representation is Luo: 34.9% (male), 35.4% (female); Luyia: 26.5% (male), 32.5% (female); Nubian: 11.6% (male), 9.1% (female); Kikuyu: 7.9% (male), 6.4% (female); Kamba: 7.5% (male), 10.3% (female); Kisii: 6.4% (male), 2.2% (female); Other: 5.2% (male), 4.1% (female)
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