Thalangama North A Grama Niladhari Division is a Grama Niladhari Division of the Kaduwela Divisional Secretariat of Colombo District of Western Province, Sri Lanka.

Thalangama North A is a surrounded by the Udumulla South, Batapotha, Battaramulla North, Muttettugoda, Himbutana East, Udumulla, Walpola and Himbutana West Grama Niladhari Divisions.

The Thalangama North A Grama Niladhari Division has a Sinhalese majority (96.4%).

In comparison, the Kaduwela Divisional Secretariat (which contains the Thalangama North A Grama Niladhari Division) has a Sinhalese majority (95.6%)[2] Ethnicity in Thalangama North A[2] The Thalangama North A Grama Niladhari Division has a Buddhist majority (90.4%).

In comparison, the Kaduwela Divisional Secretariat (which contains the Thalangama North A Grama Niladhari Division) has a Buddhist majority (90.4%)[2] Religion in Thalangama North A[2]