According to the World Population Prospects 2019 report, the world’s population is expected to increase by 2 billion persons in the next 30 years, reaching 9.7 billion in 2050 from the current 7.7 billion. The report presents the main results of the 26th round of the UN’s global population estimates and projections. It is based on population estimates from 1950 to the present for 235 countries or areas, underpinned by analyses of historical demographic trends. The 2019 revision also includes population projections to the year 2100 that reflect a range of plausible outcomes at the global, regional and country levels.
The population estimates and projections presented in the World Population Prospects describe two of the four demographic megatrends (population growth and ageing), as well as key trends in human fertility, mortality, and net international migration that are integral to sustainable development. Collectively, these data constitute a critical piece of the evidence base for monitoring global progress towards the achievement of the Sustainable Development Goals by 2030.
Read the UN World Population Prospects 2019 Highlights.
See more information at the United Nation website.