The population of Bong from the 1984 Census was 255,813 for the county. In July 2005, the population was estimated to be around 804,000.Bong County: A profile by UNMIL Civil Affairs Section In 2008, the Census placed the figure at 328,919, ranking it third in Liberia after Montserrado and Nimba. The main ethnic groups include the Kpelle, Mandingo (who are mostly Muslim), and Mano.
