| Size or Area of Saint Helena, Ascension and Tristan da Cunha is 308 square kilometers of which total land area is about 308 square kilometers and water bodies occupies about 0 square kilometers which is about 0.00% of total area. Saint Helena, Ascension and Tristan da Cunha ranks 208th in world for its size, is located in Africa continent and has population of 7,460. |