The National Statistical Office and United Nations Population Fund have released population projections for Papua New Guinea, providing national and provincial population counts through to 2050 by age and sex.

The projected population of Papua New Guinea will reach 20 million by 2045, and exceed 21 million by 2050.

These figures can support in planning for the future needs of Papua New Guinea. The figures are based on the 2021 population modelled estimates which placed the population at 11.78 million. Using mortality, fertility, and migration data from the National Population and Housing Census 2011, the Demographic and Health Survey 2006 and 2016-18, and the Socio-Demographic and Economic Survey 2022, the team at the National Statistical Office calculated an estimate of the national and provincial level population by age and sex through to 2050.