The Kuppiyawatta East Grama Niladhari Division has a Sinhalese plurality (44.5%), a significant Moor population (38.0%) and a significant Sri Lankan Tamil population (14.4%) . In comparison, the Thimbirigasyaya Divisional Secretariat (which contains the Kuppiyawatta East Grama Niladhari Division) has a Sinhalese majority (52.8%), a significant Sri Lankan Tamil population (28.0%) and a significant Moor population (15.1%)[2]
The Kuppiyawatta East Grama Niladhari Division has a Buddhist plurality (42.5%), a significant Muslim population (39.9%) and a significant Hindu population (12.0%) . In comparison, the Thimbirigasyaya Divisional Secretariat (which contains the Kuppiyawatta East Grama Niladhari Division) has a Buddhist plurality (47.9%), a significant Hindu population (22.5%) and a significant Muslim population (17.4%)[2]