The Belagama Grama Niladhari Division has a Sinhalese majority (91.4%) . In comparison, the Kolonnawa Divisional Secretariat (which contains the Belagama Grama Niladhari Division) has a Sinhalese majority (67.4%) and a significant Moor population (21.4%)[2]
The Belagama Grama Niladhari Division has a Buddhist majority (88.7%) . In comparison, the Kolonnawa Divisional Secretariat (which contains the Belagama Grama Niladhari Division) has a Buddhist majority (64.6%) and a significant Muslim population (23.1%)[2]