Most people now live in countries where two or fewer children are born for every two adults. To the Editor: Re “The World’s Population May Peak in Your Lifetime,” by Dean Spears (Sunday ...

The population of Europe, the world’s oldest region, with a median age of 42 years, began shrinking in 2020 after peaking at 747m. By 2050 it is forecast to have 40m fewer inhabitants than it ...

This week, we explore one of America’s great demographic mysteries: Why did the 2020 Census show the American Indian and Alaska Native population soaring by 85 percent?