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It is possible that a smaller workforce, coupled with increased numbers of longer-living elderly, may have a negative impact on the social security system. The Social Security Administration (SSA) estimates that the dependency ratio (people ages 65+ divided by people ages 20–64) in 2080 will be over 40%, compared to the 20% in 2005. [91]
Within 20 years, many countries in those regions will face a situation of the largest population cohort being those over 65 and the average age approaching 50. In 2100, according to research led by the University of Washington, 2.4 billion people will be over the age of 65, compared with 1.7 billion under the age of 20. [ 19 ]
This was an increase of 2.6% over the 2020 federal census of 331,449,281 residents. [21] These figures include the 50 states and the federal capital, Washington, D.C. , but exclude the 3.6 million residents of five unincorporated U.S. territories ( Puerto Rico , Guam , the U.S. Virgin Islands , American Samoa , and the Northern Mariana Islands ...
COLA over the last decade: 2025 to 2024 COLA has varied widely over the past 10 years. The lowest COLA in that timeframe was in 2016 at 0.0%, and the highest was in 2023, when COLA was a whopping ...
The natural increase rate in column three is calculated from the rounded values of columns one and two. Rates are the average annual number of births or deaths during a year per 1,000 persons; these are also known as crude birth or death rates.
Population growth is the increase in the number of people in a population or dispersed group. The global population has grown from 1 billion in 1800 to 8.2 billion in 2025. [ 3 ] Actual global human population growth amounts to around 70 million annually, or 0.85% per year.
The bulk of that increase (17 percent) took place from 2023 to 2024, with a smaller 12 percent increase from 2024 to 2025. ... 20%. Nebraska. 14%. 16%. New Hampshire. 1%. 10%. ... Insurance spikes ...
As of 2016, 757 million people live in the 101 largest cities; [41] these cities are home to 11% of the world's population. [41] By the end of the century, the world population is projected to grow, with estimates ranging from 6.9 billion to 13.1 billion; [41] the percentage of people living in the 101 largest cities is estimated to be 15% to ...