The Kahawennagama Grama Niladhari Division has a Sinhalese majority (100.0%) . In comparison, the Habaraduwa Divisional Secretariat (which contains the Kahawennagama Grama Niladhari Division) has a Sinhalese majority (99.7%)[2]
The Kahawennagama Grama Niladhari Division has a Buddhist majority (99.9%) . In comparison, the Habaraduwa Divisional Secretariat (which contains the Kahawennagama Grama Niladhari Division) has a Buddhist majority (99.1%)[2]