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A centenarian is a person who has reached the age of 100. Because life expectancies at birth worldwide are well below 100, the term is invariably associated with longevity.The United Nations estimated that there were 316,600 living centenarians worldwide in 2012, [1] and 573,000 in 2020, almost quadruple the 2000 estimate of 151,000.
Life expectancy in the U.S. was just 47.3 years old in 1900. It rose steadily for over a century until it peaked at 78.9 years in 2014 before declining in 2015, reaching 76.4 years in 2021. It ...
In 2024, 0.03% of the US population was 100 years old or older. But the Pew Research Center, using data from the US Census Bureau, estimates this will grow to 0.1% by 2054.
Ninety percent of the centenarians studied in the New England Centenarian Study were functionally independent the vast majority of their lives up until the average age of 92 years and 75% were the same at an average age of 95 years. [26] Similarly, a study of US supercentenarians (age 110 to 119 years) showed that, even at these advanced ages ...
The United States population almost quadrupled during the 20th century—at a growth rate of about 1.3% a year—from about 76 million in 1900 to 281 million in 2000. [25] It is estimated to have reached the 200 million mark in 1967, and the 300 million mark on October 17, 2006.
New data predicts population decline after 2080.
United States birth rate (births per 1000 population). [26] The United States Census Bureau defines the demographic birth boom as between 1946 and 1964 [27] (red). In the years after WWII, the United States, as well as a number of other industrialized countries, experienced an unexpected sudden birth rate jump.
The oldest man ever verified is Jiroemon Kimura of Japan, who died in 2013 aged 116 years and 54 days. [14] Inah Canabarro Lucas (born 8 June 1908) of Brazil is the world's oldest living person, aged 116 years, 254 days. João Marinho Neto (born 5 October 1912) of Brazil is the world's oldest living man, aged 112 years, 135 days. [15] [16]