In 2019, about 16.5 percent of the American population was 65 years old or over; a figure which is expected to reach 22 percent by 2050.
Share of old age population (65 years and older) in the total U.S. population from 1950 to 2050.
|Characteristic||Percentage of total population|
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.
The older population itself became increasingly older. In 2019, the 65-74 age group (31.5 million) was more than 14 times larger than in 1900 (2,186,767); the 75-84 group (16 million) was 20 times larger (771,369), and the 85+ group (6.6 million) was more than 53 times larger (122,362).
Today, just over 34 percent of the US population is aged 50 and over, and their numbers are rising rapidly with the aging of the baby-boom generation.
More than 54 million adults ages 65 and older live in the United States today, according to the U.S. Census Bureau — accounting for about 16.5% of the nation’s 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.
Changes in Metabolism At the same time, total body fat typically increases with age. This often can be explained by lower metabolic rate in addition to too many calories. As people age, fat tends to concentrate in the trunk and as fat deposits around the vital organs.
Finally, children born today will live longer than any other generation. About 2/3 will live past 80, and 1/3 past 90. Almost one in ten girls born now will live past 100.
At age 85 and older, this ratio increased to 181 women for every 100 men. Since 1900, the percentage of Americans age 65 and older more than tripled (from 4.1% in 1900 to 16% in 2018), and the number increased more than 16 times (from 3.1 million to 52.4 million). The older population itself became increasingly older.
This will result in a shift in the age structure, from 13 percent of the population aged 65 and older in 2010 to 19 percent in 2030. In 2010, 60 percent of the U.S. population will be aged 20–64. By 2030, as the baby boomers age, the proportion in these working ages will drop to 55 percent.