In 2010, the older population represented 13.0 percent of the total population, an increase from 12.4 percent in 2000. Between 2000 and 2010, the population 65 and older grew 15.1 percent, while the total U.S. population grew 9.7 percent.
The 2010 Census reported 308.7 million people in the United States, a 9.7 percent increase from the Census 2000 population of 281.4 million.
In the U.S. the population age 65 and older numbered 54.1 million in 2019 (the most recent year for which data are available). They represented 16% of the population, more than one in every seven Americans.
In 2020, there are an estimated 727 million persons aged 65 years or over worldwide. This number is projected to more than double by 2050, reaching over 1.5 billion persons. The share of older persons in the global population is expected to increase from 9.3 per cent in 2020 to 16.0 per cent in 2050.
A General overview At global level, the share of 80+ people rose from 0.6% in 1950 (15 million) to around 1.6% (110 million) in 2011, and it is expected to reach 4% (400 million) by 2050.
Because of increases in life expectancy at older ages, people 90 and older now comprise 4.7 percent of the older population (age 65 and older), as compared with only 2.8 percent in 1980. By 2050, this share is likely to reach 10 percent.
Census 2000 was the largest census in the history of the United States, counting 281 million people. In fact, the 33 million people added to the U.S. population between 1990 and 2000 is the largest census-to-census increase ever.
The United States ranked third in terms of total population size in 2000, with just under 5 percent of world population.
Population of the United States by sex and age 2020 The estimated population of the U.S. was approximately 329.48 million in 2021, and the largest age group was adults aged 25 to 29. There were 11.88 million males in this age category and around 11.36 million females.
In America, one researcher found that you are considered old at 70 to 71 years of age for men and 73 to 73 for women.
Today, there are more than 46 million older adults age 65 and older living in the U.S.; by 2050, that number is expected to grow to almost 90 million. Between 2020 and 2030 alone, the time the last of the baby boom cohorts reach age 65, the number of older adults is projected to increase by almost 18 million.