![]() Here's a timeline of the world population growth: This massive increase in human population is largely due to improvements in diet, sanitation and medicine, especially compulsory vaccination against many diseases. The 20th century, however, is where population growth really took off, and over the past 100 years, the planet's population has more than tripled in size. Over the next hundred years, the population of the world doubled, reaching 2 billion in the late 1920s. Then, as the industrial revolution took hold and living standards improved, the rate of population growth increased considerably. It wasn't until the early 19th century that the world population reached its first big milestone: 1 billion people. To give you an idea of scale, the Roman Empire, which many regard as one of the strongest empires the world has ever seen, probably contained only around 50 million people at its height that's less than the number of people in England today. The introduction of agriculture and the gradual movement of humanity into settled communities saw the global population increase gradually to around 300 million by AD 0. Here's an interesting perspective on today's world population in 2016: today's world population (~7 billion) is approximately 6% of the estimated 110 billion who have ever lived. ![]() ![]() Before the invention of agriculture, for example, the human population was estimated to be around 15 million people at most. Throughout most of history, the world's population has been much smaller than it is now. Others, including the US Census Bureau and World Bank, believe that the total population of the world reached 7 billion in 2012, around March or April. Some, including the UN, believe that a population of 7 billion was reached in October 2011. Map of the world if each country was the same relative size as its population: The United States Census Bureau estimates there is one birth every 7 seconds and one death every 13 seconds, with a net gain of one person on earth every 11 seconds. It simply isn't possible to be sure exactly how many people there are on the earth at any one time, and there are conflicting estimates of the global population in 2016. 7 billion people in the world?Īlthough the number given above seems very precise, it is important to remember that it is just an estimate. The current US Census Bureau world population estimate in 2016 shows that there are approximately 7,346,235,000 people on earth as of August 23, 2016, which far exceeds the population of 7.2 billion from 2015.Īs well as containing the latest world population estimate, this article contains information about the history of population growth, and details of the world's largest countries and cities. How many people are alive on earth today? Figuring out the current human population is a popular question to ask.
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