What does unreached mean? According to Joshua Project, the "original Joshua Project editorial committee selected the criteria less than 2% Evangelical Christian and less than 5% Christian Adherents." More of their definitions can be found here. To see the groups of unreached living in Nairobi click here and zoom in on Nairobi (It has a cluster of red dots). Zoom in till the red dots separate enough to click on individually. When you click on them one by one, you will be able to view info about each group. Really fascinating!