The bureau said the world population increased by  71 million people in 2024.

During January 2025, 4.2 births and 2.0 deaths are expected worldwide every second, the bureau said on its website.

In 2024, India remained the most populated nation in the world with an estimated population of 1.41 billion.

World population clocks

The Census Bureau’s Population Clock displays simulated real-time growth of the U.S. and world populations

The U.S. Population Clock shows the population by age (0 to 100+) and sex, as well as the highest-density states, counties and cities, read the bureau's website

In January 2025, the United States is expected to experience one birth every 9.0 seconds and one death every 9.4 seconds.

Net international migration is expected to add one person to the U.S. population every 23.2 seconds.

The combination of births, deaths and net international migration increases the U.S. population by one person every 21.2 seconds.

The World Population Clock shows the most populous countries and the top U.S. export and import partners.

As of July 2024, the top 10 most populous countries were India (1,409,128,296); China (1,407,929,929); the United States (336,673,595); Indonesia (281,562,465); Pakistan (252,363,571); Nigeria (236,747,130); Brazil (220,051,512); Bangladesh (168,697,184); Russia (140,820,810); and Mexico (130,739,927).