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What percentage of the population is 80 years old in the US?

As of 2024, approximately 4.3% of the U.S. population is 80 years or older, according to data from the U.S. Census Bureau, reflecting a significant and growing demographic trend. This percentage has been steadily increasing, highlighting shifts in life expectancy and population structure over time. For those wondering what percentage of the population is 80 years old in the US, understanding these demographic shifts is crucial.