- Population growth analysis for world countries/areas
- Historical trends and also future projections
- International migration and urbanization
World Population Indicators (1950-2100)
In demographics, the world population is the total number of humans currently living, and was estimated to have reached 7.8 billion people as of March 2020. It took over 200,000 years of human history for the world's population to reach 1 billion, and only 200 years more to reach 7 billion.
The United Nations Statistics Division collects, compiles and disseminates official demographic and social statistics on a wide range of topics. Data have been collected since 1948 through a set of questionnaires dispatched annually to over 230 national statistical offices and have been published in the Demographic Yearbook collection. The Demographic Yearbook disseminates statistics on population size and composition, births, deaths, marriage and divorce, as well as respective rates, on an annual basis.
World Population Prospects 2019
is the 26th edition of the United Nations population estimates and projections. It presents population estimates from 1950 to the present for 235 countries or areas, underpinned by analyses of historical demographic trends. This latest assessment considers the results of 1,690 national population censuses conducted between 1950 and 2018, as well as information from vital registration systems and from 2,700 nationally representative sample surveys. The 2019 revision also presents population projections to the year 2100 that reflect a range of plausible outcomes at the global, regional and country levels.
- Male Population
- Female Population
- Total Population
- Population Density
A number of different projection variants were produced to convey the sensitivity of the projections to changes in the underlying assumptions. As part of its work on probabilistic projections, the Population Division has also published the 80 and 95 per cent prediction intervals of future fertility levels, along with the median trajectory. It should be noted that the median trajectory constitutes the medium-fertility assumption.
Consistent with previous revisions, the 2019 revision of the World Population Prospects also includes
several variants with different fertility assumptions:
- medium-fertility assumption;
- high-fertility assumption;
- low-fertility assumption;
- constant-fertility assumption;
- instant-replacement assumption,
- and a momentum variant which has a different treatment of the mortality and migration assumptions as compared to the instant-replacement-fertility variant.
More info available at WPP 2019 Methodology, Section: "II. The Preparation of Population Projections"
Check out the Data and Dictionary section to learn about the indicators and country attributes which provide geographical, political and economical classifications of each country.
United Nations Population Division is the main source for the world population data and also provides the comprehensive list of locations with codes (numerical and ISO3), description, major area, region and development groups.
Related Data Products
- 235 countries or areas
- Estimates from 1950 to 2020
- Projections to the year 2100
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