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Over 8,000,000,000 (estimated) Fertility rate. 2.27 (2021) Earth has a human population of over 8 billion as of 2024, with an overall population density of 50 people per km 2 (130 per sq. mile). Nearly 60% of the world's population lives in Asia, with almost 2.8 billion in the countries of India and China combined.
In world demographics, the world population is the total number of humans currently living. It was estimated by the United Nations to have exceeded eight billion in mid-November 2022. It took around 300,000 years of human prehistory and history for the human population to reach a billion and only 218 years more to reach 8 billion.
The human sex ratio is the ratio of males to females in a population in the context of anthropology and demography. In humans, the natural sex ratio at birth is slightly biased towards the male sex. It is estimated to be about 1.05 [1] or 1.06 [2] or within a narrow range from 1.03 to 1.06 [3] males per female.
Sex ratio by country for total population. Blue represents more males than the world average of 1.01 males/females. (2020) The human sex ratio is the comparative number of males with respect to each female in a population.
If the R 0 is less than one, the reproductive performance of the population is below replacement level. List of countries (2021) [ edit ] Countries and dependent territories by the net reproduction rate in 2021 according to the World Population Prospects 2022 of the United Nations Department of Economic and Social Affairs .
It is the only index associated with the age distribution of a population. [1] Currently, the median age ranges from a low of about 18 or less in most Least Developed countries to 40 or more in most European countries, Canada, Cuba , Hong kong, Japan, South Korea, Taiwan, and Thailand . [2] [3] The median age of women tends to be much greater ...
Statistical subregions as defined by the United Nations Statistics Division. This is a list of countries and other inhabited territories of the world by total population, based on estimates published by the United Nations in the 2022 revision of World Population Prospects. It presents population estimates from 1950 to the present.
The Population Reference Bureau ( PRB) is a private, nonprofit organization specializing in collecting and supplying statistics necessary for research and/or academic purposes focused on the environment, and health and structure of populations. [1] [2] The PRB works in the United States and internationally with a wide range of partners in the ...