World Population 1900
In 1900, the world's population was 1.65 billion, and it was most concentrated in Europe, India, China, Japan, Indonesia and the United States.
World Population 2000
In January 2008 the world population is 6.64 billion. This cartogram shows the world population distribution as of 2000, when the most populated nations were India, China, Indonesia and the Philippines. The growth of Mexico and South America is visible, and the growing population in Africa, particularly Nigeria, is beginning to become apparent.