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The oldest Baby Boomers, a large demographic cohort, had started to reach retirement age in the 2010s. [ 39 ] By the early 2020s, about one in six Americans are 65 or older. [ 54 ] In 2020, the median age of the United States is 38.8, up from 37.2 in 2010, [ 42 ] 35 in 2000, and 30 in 1980. [ 55 ]
[2] [failed verification] The aged population is currently at its highest level in human history. [3] The UN predicts the rate of population ageing in the 21st century will exceed that of the previous century. [3] The number of people aged 60 years and over has tripled since 1950 and reached 600 million in 2000 and surpassed 700 million in 2006.
Mexican (1910–1930) and Hispanic/Latino (1940–2020) population as a percentage of the total population by U.S. region and state. Historically, the U.S. states with the largest Mexican/Hispanic/Latino populations were primarily located in the Southwestern states, Texas, and Florida.
The dependency ratio is the age-population ratio of people who are normally not in the labor force (the dependent population, which includes those aged 0 to 14 and 65 and older) to those who are (the productive part, ages 15 to 64). It is used to gauge the strain on the populace that is productive.
The average age at first marriage for both men and women began to fall after WWII, dropping 22.8 for men and 20.3 for women in 1950 and dropping even more to 22.5 and 20.1 years in 1956. In 1959, the United States Census Bureau estimated that 47% of all brides marrying for their first time were teenagers aged 19 and under.
People under 15 years of age made up over a quarter of the world population (25.18%), and people age 65 and over made up nearly ten percent (9.69%) in 2021. [7] The world population more than tripled during the 20th century from about 1.65 billion in 1900 to 5.97 billion in 1999.
More than 40% of the population is expected to be over the age of 65 in 2060. [9] In 2021 the population had for fifteen consecutive years declined by 644,000 on this year, the largest drop on record since 1945 and also reflecting a record low of 831,000 births. As of 2013 more than 20 percent of the population of Japan were aged 65 and over.
The population growth of each U.S. state from 1970 to 2020. This is a list of U.S. states and territories by historical population, as enumerated every decade by the United States Census. As required by the United States Constitution, a census has been conducted every 10 years since 1790. Although the decennial census collects a variety of ...