There are a few sites on the web that offer real time statistics on the worlds population. This is really cool, they use some kind of complex mathematical projection models that I don't understand but I can appreciate their significance. How accurate these population counters are I don't know, it's not like everyone on the planet is chiped and tagged (at least for now) but I've found a few of them that are very close so if one is off by a few million it's no big deal.
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| As of July 13, 2012 |
What was the population of the world in the past and when will world population reach 8 billion?
The chart above clearly illustrates how world population has changed in history. The US Census Bureau has assembled a table with estimated population from 10000 BC to 1950 according to different sources.
At the dawn of agriculture, about 8000 B.C., the population of the world was approximately 5 million. Over the 8,000-year period up to 1 A.D. it grew to 200 million (some estimate 300 million or even 600, suggesting how imprecise population estimates of early historical periods can be), with a growth rate of under 0.05% per year.
A tremendous change occurred with the industrial revolution: whereas it had taken all of human history until around 1800 for world population to reach one billion, the second billion was achieved in only 130 years (1930), the third billion in less than 30 years (1959), the fourth billion in 15 years (1974), and the fifth billion in only 13 years (1987). During the 20th century alone, the population in the world has grown from 1.65 billion to 6 billion.
| Year | Population |
| 1 | 200 million |
| 1000 | 275 million |
| 1500 | 450 million |
| 1650 | 500 million |
| 1750 | 700 million |
| 1804 | 1 billion |
| 1850 | 1.2 billion |
| 1900 | 1.6 billion |
| 1927 | 2 billion |
| 1950 | 2.55 billion |
| 1955 | 2.8 billion |
| 1960 | 3 billion |
| 1965 | 3.3 billion |
| 1970 | 3.7 billion |
| 1975 | 4 billion |
| 1980 | 4.5 billion |
| 1985 | 4.85 billion |
| 1987 | 5 billion |
| 1990 | 5.3 billion |
| 1995 | 5.7 billion |
| 1999 | 6 billion |
| 2000 | 6.1 billion |
| 2005 | 6.45 billion |
| 2010 | 6.8 billion |
| 2011 | 7 billion |
| 2020 | 7.6 billion |
| 2027 | 8 billion |
| 2030 | 8.2 billion |
| 2040 | 8.8 billion |
| 2046 | 9 billion |
| 2050 | 9.2 billion |
How fast is the world population growing right now?
Population in the world is currently growing at a rate of around 1.10% per year. The average population change is currently estimated at around 75 million per year.The annual growth rate is currently declining and is projected to continue to decline in the coming years, but the pace of the future change is uncertain. Currently, it is estimated that it will become less than 1% by 2020 and less than 0.5% by 2050.
How is the population distributed around the world?
Refer to this population density map:
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