By 2100, the Census Bureau has predicted that the largest age group will have changed from 10-14 year-olds today to 35-39 year-olds. The bureau also predicted that the global population will have ...

It takes 2.1 births per woman to maintain a population size, barring immigration. More than half of the world’s countries have fallen below that rate. By the 2070s, senior citizens (age 65 and ...

BERLIN, June 19 (Reuters) - Germany will see its working-age population decrease by 2% by 2045, according to a forecast released on Wednesday that is likely to add to fears over growth constraints ...

The fertility rate in the U.S. was on a constant decline between 2014 and 2020 and has fluctuated since then, CDC reports.