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In world demographics, the world population is the total number of humans currently alive. 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 more years to reach 8 billion.
The average number of hospital beds per 1,000 population is 2.94. It is highest in Switzerland (18.3) and lowest in Mexico (1.1) [108] 96% of the urban population has access to improved drinking water, while only 78% of rural inhabitants have improved drinking water. A total average of 87% of urban and rural have access to improved drinking water.
An estimate on the "total number of people who have ever lived" as of 1995 was calculated by Haub (1995) at "about 105 billion births since the dawn of the human race" with a cut-off date at 50,000 BC (beginning of the Upper Paleolithic), and inclusion of a high infant mortality rate throughout pre-modern history.
Statistical subregions as defined by the United Nations Statistics Division [1]. This is the list of countries and other inhabited territories of the world by total population, based on estimates published by the United Nations in the 2024 revision of World Population Prospects.
Population growth is the increase in the number of people in a population or dispersed group. The global population has grown from 1 billion in 1800 to 8.2 billion in 2025. [ 3 ] Actual global human population growth amounts to around 70 million annually, or 0.85% per year.
1. World population growth 1700–2100, 2022 projection World population by age group from 1950 to 2100 (projected) [1]. Human population projections are attempts to extrapolate how human populations will change in the future. [2]
Significant reductions in global infant and maternal mortality rates, especially in the 21st century, have led to dramatic increases in global life expectancy – and therefore the overall population. [5] [6] “This is a success story," UNFPA Executive Director Dr. Natalia Kanem said on World Population Day (11 July) 2022. "Our world, despite ...
The Demography of the World Population from 1950 to 2100. Data source: United Nations — World Population Prospects 2017. Demography (from Ancient Greek δῆμος (dêmos) 'people, society' and -γραφία (-graphía) 'writing, drawing, description') [1] is the statistical study of human populations: their size, composition (e.g., ethnic group, age), and how they change through the ...