As the world marks World Population Day, UN population estimates show the global population stood at 8.23 billion in mid-2025, continuing its decades-long upward trend.
India remains the world's most populous country, followed by China and the US, with the three nations accounting for nearly 39.2% of the global population.
The latest estimates also highlight shifting demographic trends, including declining fertility rates, longer life expectancy, and ageing populations worldwide.
