Black colobuses are known to live at low densities, but there is currently no total population estimate for the species. One of the largest remaining populations of the species, consisting of 50,000-55,900 individuals, is found in Lope Reserve, Gabon. Other remaining large populations are found in the Foret des Abeilles in central Gabon and Douala-Edea Reserve in Cameroon.
Black colobuses are known to inhabit low densities, but there is currently no total population count for the species. One of the largest remaining populations, comprising 50,000-55,900 individuals, resides in Lope Reserve, Gabon. Other significant remaining groups can be found in the Foret des Abeilles in central Gabon and Douala-Edea Reserve in Cameroon.