NavGeneral InfoEmail Print Geography Tonga (TON) Coverage type Country Time period covered 09/1956 - 09/1956 Data type Census: De facto Summary This source appears in the United Nations Demographic Yearbook. Keywords Population Citation Contributors Census Office (Tonga) Suggested citation Census Office (Tonga). Tonga Population and Housing Census 1956. GHDx Entry last modified on: Mar 7, 2022