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Women in the United States are having babies less often, and the fertility rate reached a record low in 2023, according to data from the US Centers for Disease Control and Prevention.
The declining fertility rate became more concerning following the Great Recession between 2007 and 2009, when fertility rates dropped below 2.1 children per woman.
But the world’s largest economies are already there: The total fertility rate among the OECD’s 38 member countries dropped to just 1.5 children per woman in 2022 from 3.3 children in 1960.
China has a low fertility rate compared to the United States. [8] As of 2023, China's median age has exceeded America's [144] and the Chinese population has already begun to decline since 2022. [145] China's number of people over 65 as a share of the population is predicted to exceed that of the United States by around 2035. [146]
A 2023 map of countries by fertility rate. Blue indicates negative fertility rates. Red indicates positive rates. The total fertility rate (TFR) of a population is the average number of children that are born to a woman over her lifetime, if they were to experience the exact current age-specific fertility rates (ASFRs) through their lifetime, and they were to live from birth until the end of ...
One study from Denmark projects an increase in fertility, as a result of ART, that could increase the 1975 birth cohort by 5%. [1] In addition, ART seems to challenge the biological limits of successful childbearing. [1] Immigration sometimes increases fertility rates of a country because of the births to the immigrant groups. [35]
As life expectancies increase and fertility rates decrease, the world’s population will grow older. Projections show that those 65 and older will outnumber children younger than 18 by 2080.
Replacement fertility is the total fertility rate at which women give birth to enough babies to sustain population levels, assuming that mortality rates remain constant and net migration is zero. [10] If replacement level fertility is sustained over a sufficiently long period, each generation will exactly replace itself. [10]