Updated July 11, 2012
The world population has grown tremendously over the past two thousand years. In 1999, the world population passed the six billion mark.Latest official current world population estimate, for mid-year 2011, is estimated at 7,021,836,029.
The chart below shows past world population data back to the year one and future world population projections through the year 2083.
World Population Growth
| 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 |
| 1990 | 5.3 billion |
| 1995 | 5.7 billion |
| 1999 | 6 billion |
| 2006 | 6.5 billion |
| 2009 | 6.8 billion |
| 2011 | 7 billion |
| 2025 | 8 billion |
| 2043 | 9 billion |
| 2083 | 10 billion |
