The monthly Current Population Survey shows a dramatic drop but the data is less reliable than other Census tools.

There's a birth every nine seconds in the United States and a death every 10. Here's how many people live in the U.S. and other population fast facts.

The undocumented immigrant population in the US reached a record 14 million in 2023, a 19% increase from the year before, according to new estimates from the Pew Research Center.

Immigration was the sole driver of the United States' population growth in a single year for the first time since records began, a new study released Wednesday said. The nonpartisan Migration ...

5 charts that explain how the Bay Area’s population has changed California lost 1.2 million residents in four years ...