Munyu and the neighbouring municipality of Athi are located in the central highlands of Kenya. Here the climate is hot and dry and there is little vegetation.
Most people are very poor, they live from the cultivation of their small fields and from odd jobs. The infrastructure is in poor condition, the supply of clean drinking water and electricity is inadequate and the level of education is very low. The absence of several rainy seasons has exacerbated the problems in recent years.