The Kosgama Grama Niladhari Division has an Indian Tamil majority (57.4%), a significant Sinhalese population (23.1%) and a significant Moor population (11.8%). In comparison, the Panvila Divisional Secretariat (which contains the Kosgama Grama Niladhari Division) has an Indian Tamil plurality (49.5%) and a significant Sinhalese population (38.3%)[2]
The Kosgama Grama Niladhari Division has a Hindu majority (63.3%), a significant Buddhist population (23.4%) and a significant Muslim population (11.8%). In comparison, the Panvila Divisional Secretariat (which contains the Kosgama Grama Niladhari Division) has a Hindu majority (52.2%) and a significant Buddhist population (37.9%)[2]