Homagama is a town located in the Colombo District of Sri Lanka. It is situated approximately 24 kilometres (15 mi) south-east of the capital city, Colombo.
The administrative region is governed by the Homagama Pradeshiya Sabha, which was established under Act No. 15 of 1987. This jurisdiction encompasses the Homagama divisional secretariat and 10 GN divisions of the Padukka DS division, covering a total land area of about 137 square kilometres (53 mi2) across 91 GN divisions.
Homagama is notable for its demographic scale, as it holds the highest population of any pradeshiya sabha area in Sri Lanka.