Nigeria is home to about 15.5% of the African population. The main factor contributing to the country’s population growth is immigration from Africa, Europe, and other parts of the world. According to the UN, Brazil’s population will peak at 238 million in 2050. Brazil’s population is approximately 211 million (2.76%), while Nigeria has about 201 million people (2.63%). The UN estimates that the US, alongside eight other countries, will account for half of the global population by 2050.īrazil and Nigeria are the most populous countries in South America and Africa respectively. It has one of the highest immigration rates, with researchers predicting immigrants will account for 36% of the population by 2065. About 90 million people in the US are immigrants and their US-born children. The United States is the world’s third-most populous country, with 328.2 people or 4.3% of the global population. With a 1.2% population growth rate, India could be the first country to host more than 1.5 billion people. It is the 19th most-densely populated country, with about 409 people per square kilometer. India’s population is 1.37 billion, making it the second-most populous country. India and China are the only two countries with a population of over one billion people. China’s population is approximately four times the US population, despite the US having a slightly larger total surface area. In 2000, it accounted for 21% of the global population. The proportion of China’s population to the global population has been shrinking over the years.
It accounts for about 18.4% of the world’s population. With 1.4 billion people, China is the world’s most populous country. Five of the ten most populous countries are in Asia, three in the Americas, and one each in Europe and Africa. According to the recent UN estimates, about 47% of the global population, or 3.6 billion people live in five countries.
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