What percentage of the population is over 80 years old in the USA?
According to projections from resources referencing U.S. Census data, the percentage of the U.S. population over 80 years old was approximately 3.4% in 2025, and this figure is on a rapid upward trajectory. This demographic shift is influenced by rising life expectancy and the aging of the large Baby Boomer generation. The growing population of people over 80, a key segment of the "oldest-old" demographic, will have significant implications for healthcare, social security, and housing.