The Data Sheet lists all geopolitical entities with populations of 150,000 or more and all members of the UN, including sovereign states, dependencies, overseas departments, and some territories whose status or boundaries may be undetermined or in dispute. More developed regions, following the UN classification, comprise all of Europe and North America, plus Australia, Japan, and New Zealand. All other regions and countries are classified as less developed. The least developed countries consist of 47 countries with especially low incomes, high economic vulnerability, and poor human development indicators. The criteria and list of countries, as defined by the UN, can be found at http://unohrlls.org/about-ldcs/.
World and Regional Totals: Regional population totals are independently rounded and include small countries or areas not shown. Regional and world rates and percentages are weighted averages of countries for which data are available. Regional averages are shown when data or estimates are available for at least three-quarters of the region’s population.
World Population Data Sheets from different years should not be used as a time series. Fluctuations in values from year to year often reflect revisions based on new data or estimates rather than actual changes in levels.
Country-specific notes include:
The status of Western Sahara is disputed by Morocco.
SAR stands for Special Administrative Region.
Kosovo declared independence from Serbia on Feb. 17, 2008. Serbia has not recognized
Macedonia is part of the former Yugoslav Republic.
(—) Indicates data unavailable or inapplicable.
A date range indicates the most recent data point during that time period.
The rates and figures are primarily compiled from the following sources: national statistical offices’ official websites, online databases, statistical yearbooks, and bulletins from various countries; demographic surveys such as the Demographic and Health Surveys, Multiple Indicator Cluster Surveys, and Performance and Monitoring Accountability (PMA) 2020 Surveys; the UN Demographic Yearbook 2015 and Population and Vital Statistics Report of the UN Statistics Division; World Population Prospects: The 2017 Revision, World Contraceptive Use 2016, and World Urbanization Prospects: The 2014 Revision of the UN Population Division; the International Data Base of the International Programs Center, U.S. Census Bureau; World Development Indicators online database of the World Bank; AIDSinfo online database of the UNAIDS; FAOSTAT online database of the Food and Agricultural Organization of the United Nations; and UIS.Stat online database of the UNESCO Institute for Statistics. The sources also include direct communication with demographers and country experts from around the world. Specific data sources may be obtained by contacting the authors of the 2017 World Population Data Sheet. For countries with complete registration of births and deaths, rates are those most recently reported. For more developed countries, nearly all vital rates refer to 2016 or 2015.
This publication is funded by the David and Lucile Packard Foundation, the U.S. Agency for International Development (PACE Project, No. AID-0AA-A-16-00002), and supporters. The contents are the responsibility of the Population Reference Bureau and do not necessarily reflect the views of USAID or the United States government.
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